A Sikh graduate student, working as a part-time pizza delivery person, was thrown into a swimming pool and brutally assaulted in West Texas, according to the Sikh Coalition, a community advocacy group.

When the young man, whose identity has been withheld for his protection, brought pizzas for delivery into a home, four men took the pizzas and started eating without paying, while hurling racial epithets and threatening him.

"I'm going to **** you up in Iraq, I'm going to **** you up in Afghanistan, I'm going to **** you up over here," they were quoted as saying by the Coalition in a media release. But it did not say when the incident took place.

The four men then grabbed the Sikh student and threw him into a swimming pool. The four attackers surrounded the pool, kicking him in the head and body. Every time he tried to escape, they would stomp or hit at him.

For 20 minutes, he swam for his life trying to escape. He eventually seized an opportunity to flee and barely made it to his car with two men in pursuit, the community group said.

Though the local police were called shortly after the attack, they failed to respond adequately, the community group alleged. The police classified the incident as a misdemeanor, which means that the attackers may not have to serve any jail time, it said.

The local police also did not file the incident as a hate crime, the group said. "It is clear from the attackers' references to 'bin Laden' and 'Go back to Afghanistan' and the fact that they kicked off his turban that this assault targeted not only him as an individual, but his Sikh identity."

However the Department of Justice (DOJ) is currently investigating the matter as a possible federal hate crime after being contacted when the local police department refused to prosecute the attackers for hate crime, the Sikh Coalition said.