A bomb threat made to a business near the U.S.-Canada border and a suspicious vehicle prompted federal officials to close border crossings at Champlain, NY and Highgate, VT. Vehicles heading toward the ports of entry were stopped by police yesterday afternoon and directed to smaller border crossings, said Craig Jehle, port director in Highgate.

The threatening call was made shortly before 9 a.m. to an office of Deringer, a customs broker and international freight handler. The company's offices in Champlain, Highgate Springs and St. Albans, VT, were evacuated.

Officials were investigating the threat Wednesday afternoon, which caused the closures of Interstates 87 and 89, and have provided few details. They said the suspicious vehicle was spotted near Highgate.