UPDATE: Citizen Alerted Police to Possible Barricade Situation

Update, 1:39 p.m.: About 7:30 a.m. on Friday a citizen called Hyattsville City Police and said that he had been flagged down by a male who said that people, who may have been armed, had made entry to an auto shop in the 4700 block of Crittenden Street, Sgt. Greg Phillips, of the HPD, said a few moments ago.

"Our officers secured the area, but could not determine if anyone was still inside of the business," Phillips said. "Our emergency services team, working with the Greenbelt City Emergency Services team, with whom we have a long-standing mutual aid agreement, set up a perimeter and attempted to contact anyone who may have been in the building."

After no one responded, entry was made and the building was searched. Nothing was found and no suspects were located, Phillips said.

"Our investigators are presently interviewing the persons involved so as to determine exactly what took place," he said.

Update, 12:15 p.m.: Police are now leaving 42nd Place and Alternate Route 1, where a possible hostage situation was reported this morning.

According to Hyattsville police spokeswoman Patricia Johnson, all units are clearing the scene at the Citgo gas station on 42nd Place.

Bystanders said that earlier threats of a hostage situation were false. Hyattsville, Greenbelt and Prince George's County police had responded to the scene.

We will continue to update this story when we get more information from the police.

11:50 a.m.: The Gazette reported Hyattsville police responded to a call at 4715 42nd Place 6:30 a.m. Friday.

"It's a barricade situation," Cpl. Mike Rodriguez, a Prince George's County police spokesman, told the Gazette. "It appears to be at a business. [County police are] assisting in setting up a perimeter, and we may be setting up a tactical unit if requested."

According to Johnson, by 11 a.m. they were unsure how many individuals were inside the building.

We will update this story as we get more information. If you have any tips to share, please send them to sarahn@patch.com.