GRAND FALLS, New Brunswick – Rescue crews are scouring a section of the St. John River east of Maine’s border with New Brunswick after reports of a man jumping into a gorge.

Witnesses say the man climbed down the rocks near the tourist center and NB Power dam in Grand Falls around 9 p.m. Tuesday. As several tourists watched, the man jumped into the deepest part of the gorge.

NB Power will close the gates of the dam, which is about four miles east of Hamlin, Maine, to help crews search for the man.

Last month, 13-year-old Shannon Bernard of Grand Falls was swept away by the fast-moving current in the gorge while swimming with friends. Her body was found days later near Perth-Andover.