A youth and a girl were killed by unidentified persons in Veer Singh Colony in the state capital, police sources said on Monday.
The youth Ajit Kumar, a son of a state government employee, was found killed and his body was found from a place in the area late last evening, sources said.
The girl identified as daughter of an official posted in Jharkhand, was attacked with sharp-edged weapons in the same locality and critically injured on Sunday night, they said.
She succumbed to her injuries at Patna Medical College Hospital (PMCH), sources said.
An investigation was on, sources said, adding raids were on to apprehend the killers.