Deadly Yemen violence exposes divisions within coalition fighting Houthis

Yemen's embattled President Abed Rabbo Mansour Hadi said Monday that a "coup" isunderway in his government's seat of power in the southern city of Aden, where separatists allied with the United Arab Emirates were battling his forces for a second day.

The violence has killed at least 36 people and wounded 185 since Sunday, according to the International Committee of the Red Cross. It has also exposed deep cracks within the Saudi-led coalition, which has been fighting Yemen's Houthi rebels on behalf of Hadi's government since March 2015. The U.A.E. is a key member of the coalition, but relations with the president have been tense for months.

In the Aden district of Khor Maksar, the two sides deployed tanks and exchanged heavy gunfire as shops and schools remained closed for a second day. Snipers were seen on rooftops and fighting spread to the nearby Crater district. The clashes left the two districts bitterly divided.

Violence first erupted on Sunday after a deadline issued by the separatists for the government to resign expired.

Distraction from battling the Houthis

Yemen's Prime Minister Ahmed Obeid bin Daghrdescribed the separatists' move as a coup while others pointed to the U.A.E.'s role in unleashing forces trained and armed by the Gulf Arab state to attack government offices, forces and allies.

Hadi renewed his call for a ceasefire, saying "rebellion and weapons won't achieve peace or build a state."

"The real and the main battle is with Iranian Houthi militias and any other side problems will impact the main battle," he said. "Any assault on legitimacy is a coup."

Coalition spokesman Col. Turki al-Malki said late Sunday the coalition's priority is to deliver humanitarian aid, declining to comment on the violence. In a press conference on Monday, he declined to take a clear stance toward the fighting, and reiterated an earlier call for "self-restraint."

The international aid organization Oxfam warned of violence and called for a ceasefire. It pointed to the escalation in fighting elsewhere in the country, including the central city of Taiz, where the aid group was forced to shut down its office temporarily.

The UN Office for the Coordination of Humanitarian Affairs said in a statement that the situation has "restricted staff movements in and outside of Aden" and that humanitarian flights are on hold after the closure of the airport.

The Saudi-led coalition and the Iran-allied Houthis, who control the capital, Sanaa, and much of northern Yemen, have been locked in a bloody stalemate for most of the last three years. The war has left more than 10,000 civilians dead and two million displaced. The United Nations says Yemen is facing the world's worst humanitarian crisis.