New Hampshire State Police arrested a Candia man for allegedly displaying a handgun during a road rage incident that began on Interstate 93 in Londonderry Tuesday afternoon.

Justin Krall, 39, of Candia allegedly pulled his silver Mercedes Benz alongside a white pickup truck, pulled a pistol from his glove box and laid it on his lap while the two vehicles were side by side, police said.

The pickup truck driver, Craig Harrigan, 38, of Salem, was "in fear for his life" and followed the Mercedes so troopers could locate it, police said.

The incident began about 4 p.m. as the vehicles traveled on I-93 north. They turned on Interstate 293 north, then south on F.E. Everett Turnpike. Troopers were waiting for the vehicles as they came out of the toll plaza.

Krall is charged with reckless conduct and criminal threatening. He will be arraigned April 12.

Police ask anyone who may have witnessed the incident to contact Trooper Juan Infante of Troop B barracks at 603-223-8985.