The Ministry of Labour is charging 2 construction firms in the death of a worker drilling for the new subway stop at York University.

24-year-old Kyle Knox was killed last October when a drill rig toppled on the construction site

OHL-FCC GP Canada Inc & Advanced Construction Techniques Inc. each face 4 charges under the Occupational Health & Safety Act.

The Ministry charges the firms didn't design an adequate platform for the rig based on soil conditions.  An investigation also found the the companies didn't make sure the drilling rig was being used according to the machine's manual.

Knox was killed in the collapse on October 11, 2011 & 5 other people were hurt.  It took rescuers hours to get workers trapped under heavy machinery out because of the unstable ground.  Knox's body couldn't be freed until the next day.

The defendants will be in court to answer to the charges next month.  If found guilty, the companies could each be fined up to $500 000.