HELENA, Mont. -- Former NFL quarterback Ryan Leaf was arrested again Monday, just days after he posted bail on similar charges that he burglarized a home and stole prescription drugs, authorities said.

Leaf was first arrested on Friday after police found oxycodone pills in his golf bag that an acquaintance later said Leaf stole from his home. Then early Monday, three days after posting a $76,000 bond, he was arrested again on accusations that he broke into another home outside Great Falls, Central Montana Drug Task Force commander Chris Hickman said.

The owners walked into the home Sunday afternoon to find a "tall man with an athletic build" inside, Hickman said. The man told the owners he had the wrong address and left.

The owners later discovered three bottles of prescription medication missing and phoned police. After describing his truck, his clothes and his "shiny black loafers," they picked Leaf out of a photo lineup.

A search of Leaf's home turned up 89 hydrocodone pills loose in the pocket of a bathrobe. Authorities do not believe those were the same pills that were taken from the burgled home, Hickman said.

"We don't know if he disposed of them or if he has a hiding place where he stores these things," Hickman said.

Leaf's attorney, Ken Olson, did not respond to a call for comment. A call to Leaf's publicist was not returned Monday.

Leaf tested positive for drugs at the time of his arrest Friday, according to a sworn statement filed by Hickman with Cascade County District Court. Leaf admitted he had taken about seven oxycodone pills in the past few weeks, including one the day before the arrest, the documents say.

Police obtained a warrant Monday and reviewed data from the GPS in Leaf's pickup truck, searching for information that would link Leaf to the burglaries.

"The navigational system shows that he was in that driveway yesterday afternoon during the time frame of the burglary," Hickman said.

The GPS data also showed the truck drove up to between five and 10 other houses in the area, and authorities were checking with the residents there, he said.

More people have come forward with claims of stolen painkillers since Leaf's arrest Friday, though the task force has not yet investigated those claims.

The task force plans to go back through the GPS' data history to pinpoint the truck's location during Thursday's burglary and to see whether it contains information that would lead investigators to a stash of stolen painkillers.

Hickman and other members of the task force arrested Leaf at his home early Monday.

"When I advised him that he was going to be charged with another count of burglary for the events that occurred, he didn't show any surprise -- and he didn't make any confessions or admissions," Hickman said.

Leaf appeared by video from the Cascade County Detention Center in his initial court appearance in Great Falls on Monday afternoon on two felony counts of burglary, two felony counts of criminal possession of a dangerous drug, two misdemeanor counts of theft and a probation violation.