Tewksbury Police are hunting for a man they say robbed the Shell Station at 1975 Main St. early Saturday morning.
According to a Police Department press release, investigators believe it may be the same man who robbed the same Shell Station two weeks ago.
"The suspect fits the description of an armed robbery that occurred on August 27, 2010," read the press release, in part. "He is described as a younger white male 5'4" to 5'6", medium build, dark colored hooded sweatshirt, black sunglasses, light colored jeans and black shoes."
The previous robbery took place around 2 a.m. The most recent heist took place just before 6 a.m. In both cases, the robber was armed with a knife and wore a hooded sweatshirt and sunglasses to hide his identity.
In their description of the Saturday morning incident, police say the suspect entered the store brandishing a knife, quickly approached clerk and held the knife to the clerk's back, forcing him to lay on the ground.
The suspect then went to the register and began emptying it of cash. He left the store and began walking toward Shawsheen Street, according to the report.
The suspect's activities were captured on the store's surveillance camera and can be seen here. Police consider him to be armed and dangerous.
Police believe there is a witness who saw the suspect leave the store and they are seeking that witness. According to police, the witness was driving what appeared to be a silver mini van, possibly a Nisan Quest.
Anyone who saw someone fitting that description in the area of 1975 Main St. around 6:05 a.m. on Saturday is asked top contact the Dispatch Center at 978-851-7373. If you wish to remain anonymous please call the Tip Line at 978-851-0175.