HAYWARD -- The westbound lanes of Hayward Boulevard were closed Tuesday afternoon following a head-on collision, authorities said.
Police and fire crews responded to a 2:10 p.m. call for the two-vehicle crash near Sunhill Apartments involving a silver Honda Civic and a silver Nissan 350Z, said Fire Capt. Thor Poulsen.
Poulsen said a 23-year-old woman was driving east on Hayward Boulevard when she crossed the center line and struck the Nissan.
A man and a woman in the Nissan refused medical treatment but the woman was taken to a hospital to be treated for a back injury, Poulsen said.
Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.