An unknown man wielding a butcher knife robbed a Subway restaurant in North Oakland on Tuesday morning, leaving with cash from the store’s register.

According to a release from the Pittsburgh Police, the suspect is a black man approximately 6-foot-2-inches tall. He entered the restaurant at about 9:10 a.m. wearing a navy blue hoodie, a black baseball cap and blue jeans, police said, and demanded cash from the register while using the knife to threaten the female employee working.

Although the amount of money stolen is still undetermined, Subway employee Jacob Engle, who was not at the restaurant at the time of the robbery, said the register typically holds between $100 and $170 at any given time. The man left the restaurant without injuring anyone after the employee opened the register and gave the man cash.

Engle said the restaurant does have an emergency panic button, located near the cash register, but the woman did not push the button because the robber was standing in front of it.

The suspect fled toward Melwood Avenue after leaving the restaurant, according to the release.

The Pittsburgh Police are asking anyone with information to call 412-323-7161.