Police are investigating after a biker was hit in the chest by a piece of rubble - thrown at him along the Dorset Way through Poole.

The 56 year old from Blandford was riding a motor-trike westbound near St Edward's School, just after six P-M last Saturday ... when a 'fist-sized piece of brick' left him with a cut to his chest.

Police say it's not clear if it was thrown maliciously - but whoever did it would have been around the subway that runs under the road.