A cleanup operation was underway overnight Wednesday after a hazardous materials spill at the University of California.
The accident happened at the Uytengsu Aquatics Center on the main campus, the college's Twitter account said.
Students were urged to stay away while the cleanup was taking place.
The operation was predicted to take several hours to complete, and McClintock Avenue was closed from 34th Street to Childs Way. Gate 6 was open for both entry and exit as an alternate.