Police are trying to round up a small herd of buffalo that escaped from a farm and crossed a busy stretch of the New York State Thruway.

About 15 of the animals got loose Thursday from a farm in the Rensselaer (rehn-suh-LEER') County town of Schodack (SKOH'-dak), on the river's east bank a few miles southeast of Albany. The owner believes they swam across the river to the town of Bethlehem, where they wandered Friday morning between Interstate 87 and the river's west bank.

The herd crossed a local road at about 11:15 a.m. and ambled onto the Thruway in a spot 10 miles south of Albany. Drivers slowed to avoid the buffalo.

The animals safely crossed the northbound lanes and then trotted south on the shoulder into some woods.