For the third time in less than a year the Shell Gas Station and convenience store at 1975 Main St. has been robbed.

According to a police report, investigators are searching for a man who entered the store just after 4 a.m. Sunday and made off with a cash register.

The suspect was described by a witness as a white male with a reddish color goatee. The witness said the man was wearing a gray hoodie North Face sweatshirt. It is not known if he had a weapon.

A witness also told police that he saw a smaller size, black SUV with a loud exhaust heading south on Route 38 from the store.

According to the report, an officer located the cash register on the ground at 1291 Shawsheen St.

If any readers have information pertaining to this crime, they are encouraged to call the Tewksbury Police Department at 978-851-7355, the anonymous tip line at 978-851-0175 or email to tewks_detectives@tewksbury-ma.gov

Other arrests:

Martin G. Tolson, 44, 168 Bishop Road, Fitchburg, was arrested outside Jade East, 433 Main St. He is charged with disorderly conduct.

Diane Karslian, 41, 102 Newbury St., Danvers, was arrested after a motor vehicle stop in front of Wicked Cheesy, 725 Main St. She is charged with OUI-liquor marked lanes violations and lights violations.