WATERVILLE — City and state police on Thursday were continuing to investigate an armed robbery reported Wednesday night at the Big Apple store on Elm Street.

Waterville Police Major Jason Longley said Thursday the robbery was reported around 7 p.m. and the case remains “an active investigation.”

“There’s no immediate threat or danger to the public that we’re aware of,” Longley said.

An emergency dispatch issued shortly after 7 p.m. indicated that a robber armed with a knife had fled from the area.

Waterville Police Chief William Bonney said in an email Thursday afternoon that the department is “actively following up on all leads at this time” but declined to provide more information.

Longley said that Waterville detectives were leading the investigation and that more information was expected to be released on Friday.

At the scene Wednesday night, Maine State Police and Waterville police could be seen searching the area outside of the Big Apple store at 33 Elm St. with a police dog. The store was closed and traffic flowed outside, though officers on scene there told a reporter to leave the area.

Across the street at Domino’s Pizza, which was open, employees said they didn’t know anything about the situation.