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A British foreign minister bloodied his hands attempting to save the life of a police officer who was stabbed on the grounds of Britain's Parliament in what was described Wednesday as a "terrorist incident."

After an individual drove a 4x4 through a crowd outside the Palace of Westminster, shots were fired and a police officer was stabbed. Tobias Ellwood, a conservative member of Parliament and former soldier who was close to the incident, rushed to the officer’s side.

The officer, later identified as Keith Palmer, later died of his wounds. Palmer, 48, was on the force for 15 years and was a husband and father, police said.

Photos of Ellwood — once an infantry captain in the Royal Green Jackets — show him in a blue suit giving the unidentified police officer mouth-to-mouth and attempting to stanch the blood flowing from the stab wounds.

Conservative Member of Parliament Tobias Ellwood, center, helps emergency services attend to an injured person outside the Houses of Parliament in London on March 22. Stefan Rousseau / PA via AP

Ellwood reportedly stayed with the officer until an ambulance arrived. A later photo shows him with blood smeared on his forehead.

Conservative MP Tobias Ellwood stands among the emergency services personnel at the scene of an attack outside the Palace of Westminster on March 22. Stefan Rousseau / PA via AP

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The assailant reportedly barreled across Westminster Bridge in a vehicle and plowed into pedestrians. He then crashed into a fence before eyewitnesses saw him charge through the gates of Westminster Palace with a knife. That is where the law enforcement officer who Ellwood helped was stabbed.

Four people were killed, including the police officer,and 40 others were injured before the assailant was himself shot and killed.

British law enforcement said they were treating this "as a terrorist incident until we know otherwise."

A dual national of the United States and United Kingdom, Ellwood has represented a constituency in Southern England since 2005. He became the Foreign Minister for the Middle East and Africa in July 2014.

Related: London Terrorist Attack: 4 Killed Near British Parliament

Ellwood lost his brother in the 2002 Bali bombing that killed 202 people

Members of Parliament applauded their fellow British lawmaker.

@Tobias_Ellwood is an absolute hero for what he did to help the policeman this afternoon! — Ben Howlett MP (@ben4bath) March 22, 2017

Huge respect to @Tobias_Ellwood for his heroic efforts today. Thoughts with police officer attacked — Maria Caulfield MP (@mariacaulfield) March 22, 2017

Tremendous respect for @Tobias_Ellwood for what he did along with amazing emergency services. — Stephen Kinnock MP (@SKinnock) March 22, 2017

Norway's Foreign Minister, Borge Brende, called Ellwood a good friend and "a true hero that worked to save lives today following the horrible attack in London."

This isn’t the first time the British MP has put his heroics on display.

According to the BBC, Ellwood was taken to a hospital in 2009 and temporarily lost hearing in one ear after he fought a gang in his constituency. Another group threw stones at him in 2008 when he threatened to call the police after witnessing them urinate in a constituent’s garden.

Ellwood served in Northern Ireland, Cyprus, Kuwait, Germany, Gibraltar and Bosnia while in the military. He’s currently an active Army reservist.