A Subway restaurant in a strip mall off Route 112 in Coram was robbed twice within a 19-hour period over the weekend, Suffolk police said Monday.
No one was injured in either robbery.
Police did not detail how much money was taken.
Police said the store on Glenmere Lane off Route 112 was first robbed at knifepoint at about 9:35 p.m. on Saturday. The second robbery occurred at about 4 p.m. Sunday, when police said a man entered, jumped over the counter and demanded cash.
Police said the two robberies appear unrelated.
An investigation into the robberies is continuing.