A statement on the O2 website said: "Our technical teams are investigating reports of issues when using data".
Other mobile networks, including Sky, Tesco and Giffgaff have also been affected by the problem because their networks use O2 services.
The company has confirmed that voice calls are still working, and have asked customer to alert them to any network issues they may be experiencing.
One of our 3rd party suppliers has identified a software issue in their system.
The Financial Times said the O2 outage was related to an issue with software provided by Ericsson.
We are aware our customers are unable to use data this morning.
Google is shutting down Allo, to no one’s surprise Verizon confirmed its support for Google's RCS and promised to introduce support for the service starting early 2019. Allo users can use the application until March 2019 and export their chat history using instructions posted here.
O2 have assured customers that they are working as hard as possible to get the networks up and running as soon as possible. Work is now ongoing to fix the fault and customers are being encouraged to use wi-fi where possible.
In total, around 32 million customers are affected.
The problems are UK-wide and O2's Twitter account spent the morning engaging with customers who were having issues with data.
The company, the second-largest mobile network in the United Kingdom, said it was investigating the technical fault.
A TfL spokesperson told The Register: "We're sorry that customers are unable to use our Countdown screens at bus stops for live travel information".
Some users have also reported problems with making voice calls, despite claims from O2 that voice services are unaffected.
At least three tornadoes were confirmed in northwest and southwest Arkansas, which largely caused property and structural damage. The National Weather Service says the actual number of tornadoes that touched down will be confirmed in the coming days.
The split comes just five months after the couple, who married in September 2017, welcomed their daughter Kulture . Offset and Cardi B called it quits and in the name of screenshots, Cuban Doll is apparently involved.
He added that at some point he will invite Mr Kim to the US. "President Trump and I share a view in that regard". We have a good relationship, ' Trump told reporters aboard Air Force One on his return from the G20 summit.
International Brent crude oil futures were at $61.37 per barrel at 0240 GMT, down 71 cents, or 1.1 percent from their last close. The United States is not part of any output-limiting initiative due to its anti-trust legislation and fragmented oil industry.
The position of these molecules forms part of the epigenome - a set of instructions that controls how genes are expressed. The technology has proven to be up to 90 per cent accurate in tests involving 200 human cancer samples and normal DNA.
In a statement, the Marine Corps said the planes had taken off from Marine Corps Air Station Iwakuni in southern Japan. Japanese search and rescue aircraft were immediately deployed and rescued at least one Marine.
The teaser trailer below opens with a picturesque farm and a voiceover saying "none of us were ready for the end". Ubisoft is expected to reveal more details at The Game Awards tomorrow, so keep your eyes peeled for that.
Cover your cough and sneeze, avoid people experiencing flu symptoms, stay home when you feel sick and wash your hands often. "Anyone can get the flu and face serious complications, which include death", said DHD#10 Medical Director Jennifer Morse.
For a full list of dates and locations for the tour stops, check out the band's website . "We've never stopped being a band". In July, Hootie & the Blowfish returned to the stage to support Jason Aldean during his High Noon Neon Tour in Atlanta.
For the same reason, Australia's government blocked China's telecom giant Huawei from its 5G mobile network last summer. He declined to say more about the case, citing a publication ban requested by Ms Meng and ordered by the courts.
The pair are thought to have been dating for 18 months and they have a ten-month old daughter together, Stormi . I don't know if I'll share the news with you guys, but I'll have to ask myself". 'I hate acknowledging s**t.
Sandra Oh, Andy Samberg to co-host Globes
Samberg and Oh did a test run as co-presenters at the Primetime Emmy Awards in September, which aired on NBC . The news comes just a little over a month before the actual award show.
Prince William jokes that Kate looks like a Christmas tree
The British military base in Cyprus is now used for both reconnaissance and bombing missions against ISIS in Syria and Iraq. Kate seemed to be channeling her sister-in-law's style as she arrived in Cyprus wearing wide-legged pants , left.
World's first baby born using uterus transplant from dead donor
Nearly exactly a year after the baby's historic birth, Ejzenberg says she is developing normally and her mother feels "fulfilled". Normal prenatal testing including blood sugar tests and ultrasounds were all done and returned without any abnormalities.
INTERNATIONAL - Duterte jokes about smoking marijuana
Ressa says she will challenge the charges, which include three counts of failure to file returns, and one count of tax evasion. "So I have to catch up with the reading, wala na talagang panahon", he said . "It's too late to change".
Why Canadian Oil Stocks Are Soaring Today
Western Canadian Select (WCS) is the reference price for heavy crude oil from the oilsands delivered at Hardisty, Alta. They said the current agenda does not include any discussion of a crisis facing the energy industry.
Vicky Kaushal impresses with his act in the trailer of URI
This film stars Vicky Kaushal and Mohit Raina in the leading roles as Indian commandos who led the mission of surgical strike. It's been just a few hours since the trailer of Uri: The Surgical Strike came out and it is already garnering tons of praise.
Huawei Mate 20 Pro goes on sale in India on Amazon
That appearance was probably planned by Huawei , though, as that is probably the reason why the company handed that phone to Mr. A very thin "chin" will be included below the phone's display , and other than that, this phone will sport no bezels.
Huawei CFO arrested, faces extradition to U.S.
She was detained while transferring between flights, the firm said. She is also the daughter of the company's founder, Ren Zhengfei. Meng served on the board of a Hong Kong-based Skycom Tech Co.
PETA wants you to remove 'speciesism' from your vocabulary
The group took to Twitter on Tuesday, offering a graphic showing some possible alternatives to meat-related expressions. The suggestions didn't stop at bagels: PETA tweeted a chart of "anti-animal" phrases with possible correctives.
Virat Kohli dancing down the track is pure eargasm!
Head, who played his two Tests against Pakistan in October, is among seven batsmen in Australia's squad for the series-opener. I look up to him in every single way. hopefully people respect him for the fact he's never given up.