A boy waits for his father in front of a damaged factory after an air strike by a Saudi-led coalition struck a nearby missile base, in Yemen's capital Sanaa on Monday.
* Hadi supporters, Houthi fighters in heavy clashes in Taiz
* Food and medical supplies grow more scarce
* Houthis block aid to Aden, Saudis hold up ships
Reuters/Aden
Saudi-led aircraft pounded Iran-allied Houthi militiamen and rebel army units in central Yemen and the capital Sanaa on Monday despite a formal end to the air strikes, residents said, and a humanitarian crisis worsened as both sides blocked aid.
Residents said warplanes flew between 15 and 20 sorties against groups of Houthi fighters and arms depots in the al-Dhalea provincial capital, Dhalea, and the nearby city of Qa'ataba, between dawn and 0900 local time (0600 GMT), setting off a chain of explosions that lasted for two more hours.
Fighting intensified on Sunday, after a lull following an announcement by Riyadh last week that it was ending its nearly five-week-old bombing campaign except in places where the Houthis were advancing.
A coalition of Arab countries led by Saudi Arabia, rattled by what they saw as expanding Iranian influence in the Arabian Peninsula, is trying to stop Houthi fighters and loyalists of former President Ali Abdullah Salah taking control of Yemen.
Vital aid was reported to be being held up by both sides. Houthis were stopping convoys of trucks reaching Aden and an arms blockade by Saudi-led coalition navies searching ships for weapons was holding up food deliveries by sea.
Telecommunications within Yemen and with the outside world could be cut within days due to a shortage of fuel, state-run news agency Saba quoted the director of telecommunications as saying. Fuel shortages were also preventing traders from moving food to market, the UN' World Food Programme said.
Saudi-led warplanes also struck the area around the presidential compound in Sanaa for a second day, while heavy street fighting was under way in the strategically important city of Taiz in central Yemen, according to residents and the International Committee of the Red Cross.
Fighting has killed more than 1,000 people, including an estimated 551 civilians since the bombings started on March 26, the UN said on Friday. Its children's agency Unicef said at least 115 children were among the dead.
Bread shortage
Saudi Arabia says it was concerned for its own security and Yemen's stability after Houthi forces began advancing across the country, on its southern border, in September, when the Shia militia captured the capital.
The air strikes have increased the regional tension, with the commander of Iran's elite Revolutionary Guards, General Mohammad Ali Jafari, comparing Saudi Arabia to Tehran's arch-enemy, Israel. "Saudi Arabia is following in the Zionist regime's footsteps in the Islamic world," Jafari was quoted as saying by the official Irna news agency.
The Houthis allege President Abd-Rabbu Mansour Hadi fostered Islamist militants linked to al Qaeda and corrupt officials. Hadi, who fought al Qaeda when he had control of the country, says the Islamist militant group is as much a threat to Yemen as it had always been.
The Houthi advance eventually forced Hadi into exile into Saudi Arabia, and Riyadh says it wants to restore Hadi and prevent Yemen disintegrating as a state, with al Qaeda militants thriving in the chaos and one of the world's busiest oil shipping lanes off the Yemeni coast at risk.
Residents of the southern port city of Aden said bread was in short supply and a convoy of trucks carrying flour from the Red Sea port city of Hodeida was being prevented by the Houthis from entering the city.
Convoys blocked
The Houthis also blocked a convoy of ICRC trucks carrying medical supplies to Aden, but contacts were underway to allow the supplies in.
"Our convoys were blocked from going to Aden and Marib over the weekend and we are in discussions with the Houthis to resolve that," ICRC spokeswoman Sitara Jabeen told Reuters.
On Sunday, air strikes, naval shelling and ground fighting shook Yemen in some of the most widespread combat since the operations began last month. Residents said there were at least five air strikes on military positions and an area near the presidential palace compound in the Houthi-held capital Sanaa.
Residents also said Saudi-led war planes pounded areas around the presidential compound in Sanaa for the second day, and launched at least five raids on areas under Houthi control in Marib and al-Jouf in northern Yemen.
Heavy clashes also continued in the strategically important central city of Taiz, where armed Sunni tribesmen and Islamist fighters have taken back several districts from the Houthis in heavy fighting, according to residents there.
Residents said street battles were raging in the city of some three million, with both sides using tanks and artillery in residential areas.
"The heaviest street fighting is taking place in Taiz. Airstrikes also continued in Aden," Jabeen said.
