Two people have been arrested on suspicion of robbery following an alleged raid on a shop in West Cornwall.

Thirty officers were called in to search the area following the incident at a store on Trevenner Lane in Marazion at around 4.30pm yesterday.

A man was said to have entered the shop, pulled out a large knife on a member of staff at the till and then fled the store.

Two people were taken in to custody at Camborne police station.

It is the fourth incident of its kind in West Cornwall in the space of a week.