Armed raiders stole cash destined for needy children from a video store.

The masked knifeman threatened staff at Video Box in Preston Road, Brighton, at 9.40pm on Saturday.

He stole several hundred pounds, including a bag of cash donated by customers and staff to the National Society for the Prevention of Cruelty to Children.

The offender ran off and was last seen in Springfield Road. He was 5ft 10in and spoke with a gruff voice. He wore a balaclava, blue canvas padded jacket and dark tracksuit bottoms.