UPDATE (7/5): Officials say over 400 people were treated for stings Thursday alone.

Officials will continue flying the blue flag to warn people about the jellyfish.

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SOUTH PADRE ISLAND – Cameron County officials warn there is an influx of Man O' War jellyfish in South Padre Island.

Kayla Monroe is a Rio Grande Valley native whose family came down from Mississippi to celebrate the Fourth of July.

She tells us her family is looking out for the blue flags, meaning there are creatures like jellyfish that can cause pain around the beach.

Officials tell us last weekend more than 300 people were stung by jellyfish.

“If you get stung by a jelly fish you can call 9-1-1. They are happy to come out and assist you. It is very rare we have to transfer anyone to the hospital,” says Jim Pigg from Ocean Rescue.

Pigg says there are also other things people need to watch out for at the beach such as currents, swimming alone and swimming while intoxicated.

For more information watch the video above.