LACONIA — Local police are investigating a single motorcycle accident Friday night that left the operator with a serious leg injury.

Officials said they believe speed and alcohol were both factors in the crash that occurred in the 400 block of Roller Coaster Road in the city.

First responders went to the scene at 7:51 p.m. to find the motorcycle rider had failed to negotiate a curve and struck a tree.

The unidentified driver was ejected from the motorcycle and brought to the Lakes Region General Hospital for treatment.

Anyone with information about this incident is urged to contact Officer Austin Schilling at Laconia Police Department at (603) 524-5252.