Six-year-old boy shot by sister, 7

A seven-year-old girl shot her six-year-old brother dead while the two played with a .45-calibre handgun owned by their adult brother, police said today.

The incident happened in Mississauga, Ontario, yesterday afternoon when the two young children were playing in a bedroom where they discovered the high-powered, semi-automatic pistol. The girl pointed the gun at her brother and shot him, police said.