The main cause of the two Bluebus (Bolloré) electric bus fires that occurred in April in Paris has been “very likely” identified and should cause a recall of the defective series, the group’s CEO, Cyrille Bolloré, said on Wednesday.

“We have most likely identified the root cause and sent letters to our customers,” said the manager at the general meeting of shareholders. Several investigations have been launched to investigate these fires and the RATP has suspended the use of 149 buses pending their conclusions.