KELLER, Texas -- High school cheerleading is very competitive. But some cheerleaders have gone to great lengths to get back at rival squads.

In Texas, some high school cheerleaders were sent home from cheerleading camp after allegedly putting human feces on a pizza and trying to frame rival cheerleaders for the deed.

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Web Site: Keller Cheerleaders

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Cheerleaders from Fossil Ridge High School in Keller, Texas, had a pizza sent to the Keller High School squad on the last night of a camp at the University of Texas at Arlington.

Less than an hour later, some Keller cheerleaders took the pizza to the Fossil Ridge sponsor, claiming that Fossil Ridge cheerleaders had doctored the pizza with feces.

After more questioning, however, four Keller cheerleaders were sent home.

It is unknown what discipline the girls may face at school.

The day after the pizza prank, other Keller cheerleaders read a letter of apology to the Fossil Ridge squad.