US police investigate two deaths after recapturing white supremacist inmate

Skylar Meade is back in custody (City of Boise/AP)

Police arrested a prison gang member and an accomplice who escaped following an attack on prison officers at a Boise hospital in the US state of Idaho, with investigators looking into whether they committed two killings while on the run.

Skylar Meade, the escaped inmate, and Nicholas Umphenour, the man who police say shot two prison officers early on Wednesday to break Meade out of custody, were arrested during a traffic stop on Thursday afternoon in Twin Falls, about 130 miles from where they escaped.