75-year-old London attack victim dies of his wounds

LONDON — London police said a 75-year-old man injured in the terrorist attack on Westminster Bridge has died of his wounds.

In a statement late Thursday, police said life support was withdrawn from the man and his family has been notified.

The announcement brings to four the number of victims killed in the attack Wednesday in central London. The man identified as the driver of the car that rampaged across the bridge into pedestrians was also killed by police after he jumped out and stabbed a police officer to death.

The Islamic State group claimed responsibility for Wednesday’s attack, which police said was carried out by Khalid Masood, a UK-born resident of the West Midlands in central England. Masood plowed a rented SUV into pedestrians on London’s Westminster Bridge, also killing an American man and a British woman and injuring more than 30 people of almost a dozen nationalities. He then fatally stabbed a policeman inside the gates of Parliament before being shot to death by an officer.

The dead were identified as Kurt Cochran, 54, of Utah and British school administrator Aysha Frade, 43 — both struck on the bridge — and 48-year-old Constable Keith Palmer, a 15-year veteran of the Metropolitan Police. The 75-year-old victim was not identified.

Police arrested eight people — three women and five men — on suspicion of preparing terrorist acts as authorities sought Masood’s motive and possible support network. One arrest was in London, while the others were in Birmingham. Police said they were searching properties in Birmingham, London and Wales.