A ceasefire in Yemen is set to begin on Monday at midnight, on the eve of UN-brokered peace talks in Switzerland, a government delegate at the negotiations told AFP.

Mueen Abdulmalek, a member of the government delegation, said "we hope the militias will commit to the ceasefire this time," referring to Iran-backed rebel forces in Yemen.

A presidency source confirmed the truce would begin at midnight local time (2100 GMT).