Bicyclist injured in crash on Lowry Terrace

A 44-year-old man who was not wearing a helmet was critically injured Saturday when he fell off his bicycle in La Jolla and struck his head, a San Diego police officer said.

The man fell off the bike around 2 p.m. while making a right turn from

Lowry Terrace to El Paseo Grande, near Spindrift Golf Course, said Officer Brad Ruff.

The man was not wearing a helmet and struck his head on the pavement,

Ruff said.

Witnesses said he was traveling around 25 mph when he crashed, Ruff said.