A team of nine doctors deployed to Iran by international medical humanitarian organization Doctors Without Borders — known by its French acronym, MSF — is expected to head back home without even starting its relief operations aimed at containing the novel coronavirus outbreak.

“While we offer our gratitude to MSF, with the national mobilization plan in place and all medical capacities of our armed forces used to fight the coronavirus, there is no need for hospital beds to be set up by foreign workers at the moment. This presence is canceled,” tweeted Alireza Vahabzadeh, an adviser to Iran’s health minister and spokesman for the recently established Committee to Combat Coronavirus. Iranian officials have not explained whether MSF’s donated medical items were turned back as well.

Earlier this week, Iran’s Ambassador to Paris, Bahram Qassemi, proudly declared that two different shipments of medical supplies had departed from the French city of Bordeaux to be delivered in Tehran. “Strengthening international solidarity in an anxious world hit by the coronavirus is a must,” Qassemi wrote. The MSF team, comprised of nine emergency and intensive care unit medical doctors and logisticians, was planning to set up a 50-bed inflatable field hospital in the central city of Isfahan, one of Iran’s worst-affected areas.

Iran’s abrupt decision on MSF came only two days after Supreme Leader Ayatollah Ali Khamenei cast serious doubt on US offers to help battle the outbreak. Khamenei renewed accusations that the epidemic could be some biological war waged by the US government and that any mission by US doctors in Iran could be for an assessment of the “impact of the poison” on the ground rather than for sincere help.