The Hamilton Police Reconstruction Unit is still investigation a three-car collision in rural Ancaster Thursday that left a 30-year-old man dead.

The crash happened just after 6 a.m. Thursday on Trinity Road, just south of Book Road. A 30-year-old Caledonia man died on the scene. A 57-year-old Hamilton man is still in hospital with serious injuries. He was airlifted from the scene Thursday. A 32-year-old woman was also transported to hospital by ambulance with minor injuries. She was released Thursday afternoon, said Debbie McGreal, Hamilton Police spokesperson.

The cause of the crash is still being investigated, said Det. Wes Wilson of the reconstruction unit, but he is looking into whether passing on the two-lane road and speed contributed. Mechanical tests on the vehicles will be done to determine this.

Alcohol, Wilson said, was not a factor.

Wilson said the collision was likely "off-set head-on," meaning not an exact head-on collision.

"It would appear that one vehicle was on the other side of the road," Wilson said.

A SUV, a van and a compact car were involved in the collision, but Wilson would not confirm who was driving what.

A hydro pole was hit during the accident and severed a power line. Trinity Road was closed shortly after the accident for the police investigation until about 4 p.m., when hydro crews finished restoring the power line.

Any witnesses with information can contact Det. Wes Wilson at 905.546.4753.