SHERBROOKE, Quebec -– A class-action lawsuit has been approved almost two years after a train derailment and explosion killed 47 people in Lac-Megantic, Quebec, reports The Canadian Press.

Justice Martin Bureau has given the plaintiffs permission to go after only two companies – World Fuel Services and Canadian Pacific Railway.

Initially, the legal action targeted 37 parties, including Irving Oil, the now-bankrupt Montreal Maine and Atlantic Railway and its former president, Edward Burkhardt.

In January, victims of the rail disaster reached a major financial settlement with Montreal, Maine and Atlantic Canada.

The lawsuit was filed by three Lac-Megantic residents, Guy Ouellet, Serge Jacques and Louis-Serge Parent, on behalf of all the victims.