Lai Chau head-on collision leaves 4 in critical condition

According to police officials, a semi travelling on the Sa Pa-Lai Chau highway lost its brakes crossed the centre line just before 6am and slammed into another one driving in the opposite direction near the Chu Va 12 bridge.

It's unknown if any of the drivers or passengers were wearing a seat belt.

Both trucks were totalled, sustaining extensive damage. The highway was closed in either direction for some time as crews cleared the scene.