All lanes of U.S. Highway 101 in San Francisco have reopened this morning after a crash blocked traffic for more than an hour, according to the California Highway Patrol.

The crash was reported on southbound Highway 101, just north of Interstate Highway 80, at about 11:50 p.m. Friday, the CHP said.

The two left lanes of southbound Highway 101 were blocked in the accident, and one car reportedly leaked unknown fluids onto the roadway, according to the CHP.

A Sig-alert was issued at about 12:30 a.m. The roadway was cleared and the Sig-alert was lifted about a half hour later at 1 a.m.

No one was seriously hurt in the crash, according to the CHP.

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