A cement mixer truck crashed into the wall of Tai Lam Tunnel near Yuen Long on Monday afternoon, injuring two people.
Due to the traffic accident, the fast and middle lanes of the northbound tube of the tunnel are closed to all traffic.
The slow lane is still available to motorists, but they are advised to use alternative routes such as Tuen Mun Road because the traffic is very congested now, according to the Transport Department.
After the cement mixer truck crashed into the wall, it tumbled across the road, hitting a container truck. The tunnel company attempted to drag the cement mixer truck into the fast lane, but was unsuccessful, Apple Daily reported.