Westport police are searching for the person who posted flyers downtown calling for violence against police officers.

Officers believe it was early Sunday morning when more than 50 flyers were posted in the area of Church Lane.

The sheets of paper had slogans saying "Kill Trump" and "Fight The White" as well as threats against officers.

Many also featured the symbol for the Worker's Party of Korea, the ruling regime of North Korea.

Police say speech like this isn't offensive - it's dangerous.

"There is certainly a line that gets crossed at some point, and obviously when you're calling for the murder of a sitting president or the murder of police officers, that is kind of a line and that is something that we, like any other investigation, are going to take seriously and going to look into to the furthest extent that we possibly can," said Lt. Anthony Prezioso.

Sal Liccione, a member of Westport's Representative Town Meeting, says violence is unacceptable no matter what you believe.

Police say residents are reaching out to stand by the department. Liccione says he hopes the messages don't reflect poorly on Westport.

Several of the flyers also made references to the Black Lives Matter movement.