Foreign Ministry spokesperson Abbas Mousavi said Monday that the U.S. is seeking to use the virus outbreak as part of its propaganda campaign against Iran to undermine national unity.

“Since the outbreak of the virus in Iran, we have been observing the U.S.-led anti-Iranian propaganda campaign and know about the measures the Americans have taken to reduce Iranian nation’s morale,” Mousavi told reporters, according to the Mehr News Agency.

Mousavi added that Tehran is “doubtful” about the U.S. offer of help and accused Washington of hiding its political motives behind the proposed cooperation. “We do not need them,” Mousavi said.