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Police and forensic officers at the scene of a terrorist attack in which a number of pedestrians were mowed down on Westminster Bridge on March 22, 2017 in London. Getty Images

If you find yourself watching coverage of the London Parliament attack and looking for the helpers, keep an eye out for Tobias Ellwood.

Ellwood, a member of Parliament representing Bournemouth East also working as a minister in the Foreign Office, was celebrated online Wednesday for his actions in the immediate aftermath of the Westminster incident that left at least four people dead and dozens injured.

Read: Is The Queen Safe?

Ellwood was in the House of Parliament Wednesday when a man — whose name has still not been released — stabbed a police officer after getting out of a car that had run over several people on the Westminster Bridge. The suspect was fatally shot by authorities, and in the chaos Ellwood "ran in [the] opposite direction to everyone else" in hopes of saving the wounded officer, the Telegraph reported.

"[Ellwood] tried to give mouth-to-mouth and stem blood flow from multiple stab wounds to the officer until the chopper and medics arrived," an anonymous source told the British media outlet.

The officer died, and Ellwood could be seen in photographs with a smear of blood on his head as he was surrounded by emergency workers. But his efforts didn't go unnoticed.

The Daily Telegraph's chief political correspondent, Christopher Hope, tweeted that he saw Ellwood — "a great man" — being comforted after giving CPR. West Yorkshire Police Inspector Ian Williams tweeted "thank you." Glasgow member of Parliament Stewart McDonald wrote "I've given [Ellwood] a hard time on a fair few occasions in Parliament, but today I salute him. Bravo, sir. Bravo."

Read: Westminster Attack Prompts Officials In The US, Italy And Scotland To Boost Security

Ellwood, a 50-year-old member of the Conservative Party, previously served in the Army. His brother, Jonathan Ellwood, died 15 years ago in the Bali bombings, a terror attack that killed 202 people, according to the Guardian.

As details continued to emerge on Wednesday, Parliament's speakers released a statement about the attack. "On behalf of Members of both Houses of Parliament, we wish to offer our thoughts to all those affected and their families," they wrote.