Houthi rebels have agreed to a five-day truce proposed by Saudi Arabia to allow aid into the country. The UN estimates that at least 300,000 Yemenis have been displaced by the fighting.
Government officials say the calls are 'unacceptable' after all the destruction caused by the Houthi rebel offensive.
Saudi officials had signaled that negotiations may be at hand in Yemen. But with Houthi advances continuing and a resumption of airstrikes, prospects of a political resolution have receded.
A round-up of global commentary for the April 13, 2015 weekly magazine.
The US is currently aiding the Saudis against the former US-backed president. And that same ex-president is partnering with a rebel leader he once asked the US to assassinate.
The conflict in Yemen is driven by local grievances and competition, not some Iranian plot.
With Saudi-led airstrikes in their seventh day, dozens of civilians were reported killed at a dairy factory where Yemen's Houthi rebels are suspected of storing weapons.
A Saudi-led coalition is trying to stop Yemen's major cities falling to Houthi Shiite insurgents after the removal of President Hadi, who has fled into exile. Rivalry with Shiite Iran lies behind the military intervention.
Many see the violence in Yemen as a proxy war between Sunni Saudi Arabia and Shiite Iran. That's true to an extent, but risks oversimplification.
There were conflicting reports of whether President Hadi had fled his temporary capital in Aden after Shiite Houthi fighters took over Yemen's largest airbase, just 35 miles away.
Avijit Roy, who wrote about religion, was murdered on a Dhaka street yesterday. Attacks on free expression are an almost daily occurrence in some parts of the world.
There may be economic and political rivalries within the dynasty. But its collective interest is in keeping the oil-rich nation on its longstanding course.
The recent warming of US-Cuban relations and the fall in international oil prices raise the question of whether Venezuela can put national interests ahead of ideology.
With the shared regional threat of the Islamic State and a nuclear Iran, some top Israeli security officials say now's the time for peace talks with Israel's moderate neighbors.
If US statements are taken at face value, Obama has set the country a mammoth task in the Middle East with a very low probability of success.