Beloit police investigate robberies

Beloit police are investigating a pair of armed robberies Friday night.   One occurred around 10:30 p.m. at a home in the 1200 block of Bluff Street.  Two suspects are in custody, and a BB gun, which police say resembles an assault rifle, was recovered.  The other armed robbery was on the street in the 1700 block of Wisconsin Avenue.  Police are pursuing a lead on a suspect they say displayed a hand-gun.  No one was reported injured,.