London, April 7 (IANS): A Romanian woman who fell into the Thames during last month's Westminster terror attack has died, police said on Friday.

Andreea Cristea is the fifth victim of the attack on March 22, in which Khalid Masood drove into crowds on Westminster Bridge then stabbed a policeman to death, before being shot dead, the BBC reported.

Cristea, 31, who was on holiday with boyfriend Andrei Burnaz, had been in hospital since the attack.

Her family said in a statement that she passed away on Thursday.

Burnaz sustained a broken foot in the attack but has been discharged from hospital.

The couple were in London to celebrate Burnaz's birthday and he had been planning to propose to Cristea that day, Romania's UK ambassador Dan Mihalache told the BBC.

He said it was thought Masood's car had mounted the pavement and hit Burnaz, before pushing Cristea into the Thames.

The other people killed on the bridge were Aysha Frade, 44, who worked at a London sixth-form college, US tourist Kurt Cochran, 54, from Utah, and retired window cleaner Leslie Rhodes, 75, from south London.

Father of two PC Keith Palmer was fatally stabbed outside Parliament.

Relatives of those killed joined members of the Royal Family at a "service of hope" held at Westminster Abbey on Wednesday.