Five senior commanders from Yemen’s Shia Houthi rebel movement have been killed in clashes in its northern heartland of Saada province and in western Marib province, the Al-Arabyia TV channel reported on Thursday.
Aqil al Dulaimi, Hisham al Dulaimi and Kamal al Dulaimi were killed in Serwah in Marib, Al-Arabiya said, citing unnamed sources.
A special forces commander for former authoritarian president Ali Abdullah Saleh, Abdul Latif Hatim, was killed in northeast Saada with Abu Ali Abdullah Mohammed al-Houthi, a field commander said to be close to the Houthi leadership, Al-Arabiya quoted the sources as saying.
A truce brokered by the United Nations began late on Wednesday between pro-Houthi forces and those loyal to exiled president Abd-Rabbu Mansour Hadi.
The fragile UN-backed truce is intended to last at least three days, although there have been reports of sporadic clashes.
A coalition has been fighting the Iran-backed Houthis and their allies since March 2015, when a Saudi-led air campaign began in support of Hadi - Yemen's internationally recognised president.
The war has killed nearly 7,000 people, mostly civilians and pushed the impoverished country to the brink of famine, according to the UN.