Authorities probe ties between blasts, devices in 2 states

Authorities questioned several people early Monday after a car stop in New York City as they worked to determine whether there was a connection between several explosive devices found in two states in two days. An explosion rocked a bustling Manhattan neighborhood Saturday night, and an unexploded pressure cooker device was found blocks away; there was a pipe bomb blast earlier Saturday in a New Jersey shore town; and five explosive devices were found near a New Jersey train station late Sunday.