Marib (Debriefer) The Yemeni northeastern governorate of Marib on Friday saw renewed fighting that left 51 deaths and injuries from both the national army and Houthi militants.
The fierce occurred in the southern front of Marib, Yemeni military source told the Sputnik International.
Several hours of fighting saw artillery shelling from both sides and left 13 Houthis and 10 government troops and tribesmen killed, and 28 injured, the source added.
The clashes were triggered by Houthi attempt to advance towards army's strategic sites alongside the Eastern Balaq Mont south Marib, he said.
This is the first Houthi escalation in the oil-rich after the UN announced a 2-month truce that was renewed twice on 2 June and 2 August, and expired on 2 October.
On Tuesday, the UN envoy for Yemen, Hans Grundberg, told the Security Council that the Houthi attacks on oil ports and facilities could lead to wider military and economic escalation and undermine all the mediated peace efforts.