The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxShocking footage has emerged of black smoke billowing from a crematorium that has become overwhelmed by Covid victims.Footage taken by residents near the San Xavier crematorium in Guanajuato state, Mexico, captures a train of black smoke filling up the sky.The visible fumes can be seen a kilometre away from the crematorium.Resident Regina Aranda, who shared the footage on Twitter, complained a horrible stench followed the smokeShe said: "It is unbearable living with this smoke."She also claimed that the crematorium has ignored punishments from the local authorities and keeps burning bodies without any attempt to control the smoke.