Two vehicles collided at the intersection of Route 8 and Unionville Road in Center Township at 8:15 p.m. Friday.

Stephanie Lloyd, 18, of Butler was driving west on Unionville Road when she failed to stop at a stoplight, according to police.

Kenneth Purvis, 48, of Saxonburg, was driving south and attempted to avoid Lloyd's vehicle but his vehicle hit into the front of her's.

Neither Lloyd nor her 16-year-old female passenger of Butler were injured. Purvis was uninjured, but his passenger, Tina Purvis, 48, of Saxonburg, was transported to Butler Memorial Hospital.

Lloyd was cited for a traffic violation.