Police in Spencer, Massachusetts, are responding to a barricade situation at the Big Y shopping plaza, prompting the temporary closure of Route 9 between West Main Street and South Spencer Road. Local authorities, including Massachusetts State Police, Spencer police, and ATF agents, are involved in efforts to resolve the incident peacefully. Witnesses reported hearing gunshots and seeing someone with what appeared to be a firearm inside the store, leading to a significant police response. Residents have been advised to avoid the area as law enforcement works to de-escalate the situation. No further details about the suspect or the incident have been released, and police are continuing their efforts to achieve a peaceful resolution.