Authorities in Eagle Pass have reopened the International Bridge 2 between Texas and Mexico after a report of a suspicious device on the bridge Wednesday morning.

U.S. Customs and Border Protection (CPB) officials said local authorities closed the bridge to traffic at approximately 10:30 a.m. Wednesday due to a safety concern.

The bridge was reopened at 4:20 p.m. after it was cleared.

Early reports indicated the object may have been a grenade, but that has not been confirmed. CPB officials say they are monitoring the situation.

"While the temporary closure of Bridge II – which handles commercial traffic – caused an interruption in the trade process, we have special protocols in place with the Government of Mexico that allow us to continue to process trucks after normal business hours," CPB Public Affairs Specialist Dennis Smith said in a statement. “U.S. Customs and Border Protection has protocols in place to address any contingency that may occur and stand ready to enact them should there be any threat to port operations. We continue to work together with our state and local law enforcement partners and with our partners from the Government of Mexico. Our primary concern is the safety of our officers and the traveling public.”