Update expected today in Ottawa bus crash investigation

An update is expected today from Ottawa police regarding Friday's horrific bus crash that killed three people and injured 23 others. 

Police are expected to discuss the investigation and the agencies involved. 

The bus, on an express route from downtown to the suburb of Kanata, wasn't scheduled to stop at Westboro station on Friday when it slammed into the roof of a shelter, cutting through the right side of its upper deck.

The bus driver, initially arrested hours after the crash, has since been released unconditionally pending further investigation