An 18-year-old man has been arrested in south London on suspicion of the murders of sisters Bibaa Henry and Nicole Smallman in Wembley on 6 June, the Metropolitan Police said.

The man was arrested at an address in south London on suspicion of both murders and remains in custody.

The sisters were stabbed to death at Fryent Park, off Slough Lane. They had been in the park with a group of friends from 7pm to celebrate Bibaa’s 46th birthday, and were the only two remaining from the group by 12.30am the following morning. 

Police believe the murder happened in the next few hours after this.

scene and a post-mortem examination gave the cause of death for both as stab wounds.

He is yet to appear in court.