Niagara Regional Police officers are investigating thefts at Seaway Mall in Welland and the Pen Centre in St. Catharines.
Last night at 6 o'clock, police were called to the Seaway Mall after a suspect entered the Tianna Jewellery Store and asked an employee for assistance as he was shopping for chain necklaces.
Police say as the employee pulled out a pallet of chains, the unknown man grabbed the pallet and ran out of the store.
The suspect fled the scene prior to police arrival.
At approximately 6:50pm, officers attended the Pen Centre where a similar incident occurred at the Charm Diamond Centre store.
The suspect is described as black, 6 feet tall, a medium build, wearing a black t-shirt with a yellow circle and white markings in the middle, and a medical mask on his face.
He was driving a grey Chevy sedan with a tinted license plate.
Anyone with information or anyone who may have witnessed this incident is asked to contact the Niagara Regional Police at 905-688-4111, ext. 1002200.