More than 100 people have died after floods and landslides hit Rwanda’s northern and western province, authorities say.

“Many houses collapsed on people,” western province governor François Habitegeko told the BBC.

He added that main roads in the area “are not usable because of landslides”.

Rwanda’s public broadcaster RBA reports that the casualty numbers are expected to increase as floodwaters continue to rise.

The government’s main priority now is to “reach every house that has been damaged to ensure we can rescue any person who may be trapped”, the Reuters news agency quotes Mr Habitegeko as saying.

Relief efforts have already started, “including helping to bury victims of the disaster and providing supplies to those whose homes were destroyed,” a government minister for emergencies, Marie Solange Kayisire, told the AFP news agency.