London Attack
A woman ducks under a police tape after an attack on Westminster Bridge in London, Britain, March 22, 2017. REUTERS/Toby Melville

A man, caught with a selfie stick on live television during the Westminster attack Wednesday, sparked outrage among Twitter users who criticized him for his act and called it "unbelievable."

Sky News live coverage of the event showed a man wearing black sunglasses trying to take a selfie with the chaotic scene behind him outside the U.K. parliament where the attack took place. Just a few moments before the man was trying to take a picture, a police officer had been stabbed with a knife and his attacker had been shot and killed by other officers at the scene.

Although officials have been treating the attack as an act of terrorism, no terrorist group has yet claimed responsibility.

The coverage showing the man with the selfie stick had ambulances lined up near the Westminster Bridge and numerous police officers were also present.

The photo of the man with the selfie stick angered Twitter users and they reacted calling his actions inappropriate.

The attack started about 2:40 p.m. GMT (10:40 a.m. EDT) when a speeding car ran over pedestrians on Westminster Bridge and then crashed into the railings surrounding the U.K. parliament. The suspect was shot by police officers after he killed three people — a woman in her 40s, a man in his 50s and a police officer — and injured 40. "We've declared this as a terrorist incident and the counter-terrorism command are carrying out a full-scale investigation into the events today," Mark Rowley, Britain's most senior counterterrorism officer, told reporters.

BBC aired a footage showing a woman falling from the Westminster Bridge in to river Thames, however, it was not clear if she was hit or she jumped intentionally. Later reports said that she was pulled out from the river and taken to a hospital for treatment. Three police officers, five South Korean tourists and two Romanian tourists were also injured on the bridge. Three French schoolchildren aged 15 or 16 years were also among the injured during the attack.