Three men have been arrested in connection with the murder of a man outside a birthday party in Stonebridge.

Shawn Callum, 26, was one of 200 guests at a birthday party, being held in Stonebridge Primary School, before he was gunned down on Sunday morning in Shakespeare Avenue.

An 18-year-old was arrested on Wednesday along with a 21-year-old and 23-year-old who were arrested on Thursday.

All three remain in custody at north London police stations.