Suspect on the loose after barricade situation. PHILADELPHIA - An armed robbery turned barricade situation ended with a suspect fleeing the scene Wednesday morning, according to Philadelphia police.The incident began when officers responded to a robbery on the 1500 block of Napa Street just after midnight.A suspect reportedly fled into a nearby residence armed with a gun as a police declared it a barricade.MORE HEADLINES:Police say three people were inside at the time, but the suspect was able to escape.No arrests were made, and no weapons recovered.