SANAA, Yemen (AP) — The international medical aid agency Doctors Without Borders is warning that thousands of Yemeni patients in need of dialysis face a life-threatening satiation after their treatment centers have been pushed to a "breaking point" because of the ongoing conflict.

The group, also known by its French acronym MSF, said on Tuesday that Yemeni dialysis centers are struggling with supplies amid import restrictions imposed by the Saudi-led coalition battling Shiite rebels known as Houthis. The coalition has blockaded Yemen's entry points, including the airport in the capital, Sanaa.

William Turner, MSF's chief in Yemen says those with kidney failure "are at a critical moment."

Adel Al-Hagami, head of the Dialysis Treatment Centre in a Sanaa hospital, says patients who can't get their weekly dialysis treatment "will die."