08/24/2014 05:42 pm ET Updated Aug 24, 2014

4 Sharks Spotted Circling Swimmers At Manhattan Beach Pier

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Four juvenile white sharks were reportedly seen circling swimmers at Manhattan Beach near Los Angeles on Sunday morning, according to local media.

No attacks by the sharks were reported. Los Angeles County Fire Department's Lifeguard Division said in a tweet they monitored the sharks for 30 minutes until they moved away from the beach.

Lifeguard Kylie Daniels told CBS Los Angeles the beach was not cleared of swimmers in accordance with protocol because the sharks were not larger than 8 feet.

The sighting comes a month after a swimmer at the same beach was apparently attacked by a shark, in a video that can be seen here.