PITTSBURGH (KDKA) – Pittsburgh Police are investigating an online threat warning of a hate crime in Pittsburgh.

Pittsburgh Police say they are investigating a threat with their law enforcement partners.

READ MORE: Homestead Grays Bridge Will Be Rededicated On Sunday

They remind people, “If you see something, say something.”

They ask people to call 911 and alert police to suspicious activity.

Police did not say when the hate crime would occur or what area it would target.

READ MORE: Tornado Warning Issued In Northern Ohio, West Of Mercer County

However, UPMC tweeted a statement saying they knew about a tweet directed to an undisclosed Pittsburgh-area hospital.

“We’re actively cooperating with federal and local law enforcement as they investigate this matter and determine whether or not the information is credible,” the tweet said.