Swiss retailers Migros and Coop are facing continued pressure from global trade unions to sign up to the Bangladesh Accord on Fire and Building Safety.

At the end of last year, IndustriAll and Uni urged the two companies to sign the Accord, a legally binding document aimed at making the Bangladeshi garment sector safe and sustainable.

More than 130 companies have so far signed the agreement, which came in the wake of the Rana Plaza factory collapse, which killed more than 1,100 people.

The two global unions have now written to Migros and Coop for a second time, asking to meet with the CEOs of both retailers.

IndustriALL general secretary Jyrki Raina said: "Together we need to make Bangladesh a label of pride. Coop and Migros need to take their responsibility for a sustainable garment industry and sign the Accord."

While Uni general secretary Philip Jennings added: "There is simply no excuse for not signing the Accord. 1,800 mothers, fathers and children died [in the last seven years] simply because of unsafe factories in which western brands source their products. Migros and Coop have a responsibility which they refuse to meet."