On Tuesday, people look at the floral tributes placed at London Bridge to commemorate the victims of Saturday’s attack in London. (AP photo)

LONDON (AP) — Police searching for a French man who has been missing since the London Bridge attack say they have recovered a body from the River Thames.

The Metropolitan Police says the body was found Tuesday downstream from the bridge.

The force says formal identification has not yet taken place, but Xavier Thomas’ next of kin have been informed.

If confirmed, Thomas would be the eighth person killed in the vehicle and knife attack. Almost 50 were injured.

Thomas, 45, was walking with his girlfriend over the bridge when the attack began on Saturday night.

Police said earlier that witness accounts suggested Thomas might have been thrown into the river.

Thomas’ girlfriend was struck and seriously injured by the van.

Meanwhile, relatives of Australian Sara Zelenak have confirmed she was killed in the London attacks over the weekend.

The 21-year-old worked as a nanny in London and had previously been described as missing after the attacks Saturday night.

Her aunt, Tara, says Zelenak’s mother Julie Wallace broke down when she learned of her daughter’s death while traveling to Britain.

Tara posted on Facebook: “Even though there was limbo for days, there was still a bit of hope.”

At least seven people were killed and dozens wounded in the attacks by three assailants near London Bridge. Another Australian who died, nurse Kirsty Boden, was said to have been trying to help other victims when she was killed.

Also, London police early today arrested a 30-year-old man in east London in connection to the lethal attack on London Bridge and are searching his home.

Two men are now in custody on suspicion of violating the Terrorism Act. They have not been identified or charged. All others who had been arrested have been released without facing charges.

London officials said a large part of the outer cordon of the crime scene had reopened. Borough Market, a popular gathering place, remains closed as more evidence is gathered.

The attack, and prior attacks in Manchester and near Parliament in London, have prompted Prime Minister Theresa May to call for tougher counter-terrorism laws even if it means changing human rights protections.

Reaction to the attack has dominated the final days of campaigning before Thursday’s general election, with opposition Labour Party leader Jeremy Corbyn and others criticizing May for cutting police numbers by roughly 20,000 during her tenure as home secretary.

In the Saturday night rampage, the attackers first drove a rented van into a crowd and then jumped out and randomly stabbed people they encountered.

Police killed all three attackers.

At least two of the men were known to British intelligence and law enforcement officials, raising questions about whether anything could have been done to prevent the assault.