At least four people were killed and around a dozen others injured when a Doctors Without Borders or Médecins Sans Frontières (MSF)-supported hospital was bombed in the northern region of Yemen on Sunday.

The missile struck the Shiara hospital in the Razel district of Saada province early Sunday. It also severely damaged hospital buildings, according to Middle East Eye. Three MSF Staff were among the injured, and two of them reportedly are in critical condition.

The Geneva-based medical humanitarian organization termed the bombing a violation of international humanitarian law.

"All warring parties, including the Saudi-led coalition, are regularly informed of the GPS coordinates of the medical sites where MSF works," director of operations Raquel Ayora said in a statement.

 

"There is no way that anyone with the capacity to carry out an airstrike or launch a rocket would not have known that the Shiara Hospital was a functioning health facility providing critical services and supported by MSF," he added.

It also urged all parties to the conflict that patients and medical facilities must be respected.

A Saudi-led coalition of the Arab nations last week resumed airstrikes against Sanaa-based Houthi rebels after a two-week ceasefire.

The ceasefire agreement between two sides was announced on Dec. 15 after the resumption of U.N.-mediated Yemen peace talks in Switzerland, as HNGN previously reported.

Nearly 6,000 people - more than half of whom were civilians - have been killed in the war-torn country since March 2015.