Mexico rejected an accusation by Salvadoran President Nayib Bukele on Monday that it had allowed a dozen people with coronavirus to board a flight to San Salvador, saying medical staff had found no evidence of the virus on the travelers. Earlier, Bukele abruptly suspended all passenger flights to San Salvador after making his assertion on Twitter, describing Mexican authorities as “irresponsible.” The Salvadoran president did not provide evidence for the claim, which Mexican Deputy Health Minister Hugo Lopez-Gatell said turned out to be “totally false.”