Published: Jul 19, 2011 7:19 PM EDT
Updated: Jul 19, 2011 6:19 PM EDT

CORAL SPRINGS, Fla. (AP) - Authorities say a Fort Lauderdale man was charged with aggravated child abuse after using a 10-inch circular saw to try to remove a cast from his son's hand. The boy was severely cut.

Broward County Jail records show 33-year-old Lawrence Roberts was released Monday on a $7,500 bond. He is charged with aggravated child abuse.

The 15-year-old boy received emergency surgery at Broward General Medical Center.

According to a Coral Springs police affidavit, the top of the boy's right thumb was cut off and the middle of his index finger was almost sliced in half. He was also cut between his thumb and index finger.

Roberts did not tell police why he tried to remove the cast. Authorities say he arrived at the boy's home Sunday morning with the saw.

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