Jude Law and Sadie Frost's two-year-old daughter, Iris, has been rushed to hospital after swallowing part of an ecstasy tablet.

Frost - who recently gave birth to the couple's third child - was able to retrieve half of the tablet before Iris could swallow it all.

The incident took place at a children's party in London private members' club Soho House, where Iris is thought to have picked the tablet off the floor.

The pair have a film and theatre company

Police were then called and the two-year-old was kept in hospital for observation.

Road to Perdition star Law, 29, was said to have been told the news while filming in the US.

A Scotland Yard spokesman said: "We were called at 4.11pm Saturday afternoon by a London hospital regarding a two-year-old female child that was believed to have swallowed half a tablet of ecstasy.

"The child had been attending a children's party on Saturday where she was believed to have picked up a tablet that had been left on the floor of the premises on Old Compton Street.

This is being considered as an unforeseen accident outside the parents' control

Police spokesman

"The premises had been used as a bar and nightclub on the Friday.

"It is believed that the child's mother discovered the two-year-old with an obstruction in her mouth. She managed to retrieve one half before it could be ingested.

"An ambulance took the child to the hospital where she was kept in for observation overnight. She was released Sunday morning.

"The tablet has been confirmed as ecstasy," he said.

'Private matter'

A spokesman for the Soho House Club, where the incident happened, said: "There was a private party. It was a private matter."

He later added: "We have requested a meeting with the Metropolitan Police and will be co-operating fully with them.

"It is made clear to all our members in the club's rules and regulations that drugs will not be tolerated on the premises."

A police source said there was no suggestion that the parents were guilty of neglect, adding: "There are no plans to take action against the parents of the victim.

"This is being considered as an unforeseen accident outside the parents' control."

The licensing branch of the Metropolitan Police has been informed and will decide whether to take further action.

Frost gave birth to son, Rudy, last month. They have another son, Rafferty, five, and Frost has an 11-year-old son, Finley, from a previous marriage.