Fighting between the Yemeni government forces and the Houthi fighters renewed in governorate of Marib on Tuesday, ending the short lull in hostilities.
The fighting broke out in the southern part of Marib as Houthis attempted to advance, local sources said.
"A number of Houthi fighters were killed and injured in the violence," the sources added, as the Saudi-led coalition warplanes "targeted Houthi sites and gatherings in Haid Al Ahmed front opposing Morad Mount."
Since the start of this year, oil-rich Marib province has seen heavy confrontations, leaving a huge number of deaths and injuries from both warring sides.