UPDATE: On Friday, July 5, South Padre Island spokesperson Nikki Soto released more details on the four individuals who were treated following Thursday's shark attacks.

Previous story below:

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Authorities have received reports of four shark attacks at South Padre Island.

Texas Parks and Wildlife Department Game Warden Captain Chris Dowdy said there were a total of four injuries on Thursday that they believe were caused by the same shark

One report came in at around 11 a.m. of a man suffering a severe shark bite to the leg near the 4100 block of Gulf Boulevard.

According to South Padre Island spokesperson Nikki Soto, the South Padre Island fire and police departments provided immediate treatment to the victim, and he was transported to a nearby hospital.

Dowdy said one other person was bitten by the shark, adding that another person was grazed by the shark and only received minor injuries.  A fourth individual was injured fending off the shark. 

The shark has since escaped to open waters, and there are no plans to contain it, Dowdy said.

The conditions of the two bite victims are unknown.