A three-year-old Abbotsford, B.C., boy has been rushed by medivac helicopter to Children’s Hospital in Vancouver after falling from a second-storey apartment building window.

The boy’s condition is not known.

Sources tell CBC News that the boy’s family was moving into an apartment complex in Delair Road when the incident occurred just before 5:30 p.m. Friday.

Abbotsford police are investigating.