Ban Ki-moon "is gravely concerned about the deteriorating situation in Yemen. He deplores the heavy fighting between Ansarallah armed groups and Yemeni presidential guards throughout Sana'a," the UN press office said in a statement.
As a result of violent clashes between Houthi rebels and members of the country's presidential guard 9 people have been killed with more than 60 injured on Monday.
#UNSG is gravely concerned about the deteriorating situation in #Yemen. He calls on all sides to cease hostilities. http://t.co/IBzB6luNoV
— UN Spokesperson (@UN_Spokesperson) 20 января 2015
Even though Houthi rebels and presidential guard members managed to reach a ceasefire agreement on Monday, clashes never ceased entirely.
On Tuesday, a military source told Sputnik that Houthi rebels managed to capture the presidential palace in the Yemeni capital Sanaa.
The Secretary-General "calls on all sides to immediately cease all hostilities, exercise maximum restraint, and take the necessary steps to restore full authority to the legitimate government institutions," the statement read.
"All sides must abide by their stated commitments to resolve differences through peaceful means to ensure the full implementation of the Peace and National Partnership Agreement," the statement added.
The UN Security Council held an emergency meeting on the situation in Yemen earlier on Tuesday.
