SAN FRANCISCO (KRON) – UPDATE: Over five hours after the initial incident, officials say roads are still closed and the area is to be avoided as an investigation continues.

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Five people are being treated after a major vehicle collision occurred on Lake Merced Blvd between Higuera Drive and Brotherhood Way.

Authorities are asking the public to avoid the area.

Roadways near the incident are closed.

This is a developing story and will be updated as more information becomes available.