(KRON) — Traffic on westbound lanes of CA-92 across the San Mateo Bridge has come to a crawl after a second traffic collision Tuesday morning around 9:15 a.m. Earlier Tuesday morning, all westbound lanes were closed for about an hour before reopening.

The latest severe traffic alert was issued by the California Highway Patrol after three vehicles were involved in a collision, according to the incident log. The right lane of westbound Highway 92 was blocked as of 9:35 a.m.

Motorists around Hayward trying to travel west on the San Mateo Bridge face major delays of over an hour.

At 6:41 a.m., all lanes of westbound Highway 92 east of the San Mateo Bridge were blocked in the first incident, according to the CHP. The lanes remained closed for around an hour before reopening.

No further details are known about the collision or the injuries.

This is a developing story. Check back for updates.