Saudi-backed Yemeni tribal fighters captured a dam in central Yemen on Tuesday from the Iranian-backed Houthis, while they lost grounds near the port in Aden in southern Yemen, where the Yemeni president and his government is based.
Residents and officials said according to Reuters that the militiamen - loyal to the Yemeni President Abd-Rabbu Mansour Hadi, who returned from exile in Saudi Arabia last month - captured the strategic dam of Marib, following fierce confrontations for several weeks with the Houthi rebels - who are loyal the former Yemeni President Ali Abdullah Saleh - towards Sanaa.
Meanwhile, the pro-Hadi fighters lost ground in the south near the port of Aden, which was recaptured from Houthis in July alongside other southern provinces.
The troops of the Saudi-led coalition and local tribesmen planted the flags of the United Arab Emirates, Bahrain and Saudi Arabia over the dam, as the Gulf Press printed photos.
Saudi Air Forces have led an Arab coalition - comprises of 10 countries - in Yemen since March 26, targeting the Houthi militias to restore the exiled government of Hadi.
On Monday, an air strike on a wedding party killed more than 131 people in Taiz province, but the Saudi-led coalition denied responsibility.
"No air strikes were launched in that area in the past three days...it's not true that every explosion that happens in Yemen is caused by the coalition," coalition spokesman Brigadier General Ahmed Asseri said.
The UN's World Food Programme has warned a famine in the war-torn Yemen. Twenty million people in the country are in dire need of aid, 13 million are facing food shortages and 9.4 million are having difficulties accessing drinking water.
According to the United Nations, at least 5,400 civilians have been killed since the coalition began its bombing campaign, in support of the exiled government last March, and at least 1.3 million have been forced to flee their homes during the conflict.