County District Attorney Stephen A. Zappala Jr. said the burglary ring focused on the theft of safes, automated teller machines and slot machines, the Pittsburgh Post-Gazette reported Thursday.
The suspects were identified as Timothy Sunday, 47; Sunday's girlfriend Stacey Hanus, 45; Sunday's younger brother Michael, 45; James Marvin "Sonny" Watson, 67; and Margaret "Peggy" Reynolds, 45.
Reynolds and Watson remained at large, while the others were apprehended this week, police said.
Zappala said the suspects allegedly stole their targeted items in Allegheny, Butler and Westmoreland counties. The suspects allegedly would then remove cash from the stolen goods and dump the items in the Allegheny River, the district attorney added.
"We don't have a lot of these type of burglaries. The guys who are career guys. They try to leave as little mark as possible," Zappala told the Post-Gazette.
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