Photo: CTV

Investigators with the Coquitlam RCMP and Canadian Pacific police and working together to determine what caused a collision between a tanker truck and a train early Monday evening.

The collision caused a massive fire at the Coquitlam CP railyard, and the evacuation of several businesses in the surrounding area.

The tanker truck was carrying ethanol that ignited and led to a complete closure of the Lougheed Highway for several hours.

After battling the blaze for about eight hours, officials say the fire has been completely extinguished.

There were no injuries, and all parties involved have been cooperative with police.

A cleanup of the area has been completed and all traffic routes have been reopened. Businesses in the area have also been cleared to reopen.