Read / Add Comments Tornados touched down in Bucks and Mercer counties Thursday evening, downing trees, collapsing buildings and leaving thousands without power. One tornado was confirmed by the National Weather Service in Mercerville-Hamilton Square near Trenton at 6:34 p.m. Another was in Solebury and the second in Bensalem near the Neshaminy Mall just after 7 p.m. A partial collapse was reported at the Faulkner Buick GMC Trevose, where a mass casualty was declared.