Dozens of Amtrak passengers are safe after a train got stuck in a tunnel without power north of Baltimore during a heat wave in Maryland.

BALTIMORE (WJZ) - Passengers on an Amtrak train are safe after it got stuck in a tunnel during a heat wave. Shortly after leaving Baltimore’s Penn Station, the Amtrak Northeast Regional 94 train slowly came to a halt in a tunnel. Passengers said it began at 3:40 p.m. Monday, and the train quickly began to heat up.

Travelers were reportedly evacuated from Northeast Regional Amtrak Train 94 after being stuck for more than an hour in the Baltimore & Potomac Tunnel with no air conditioning.