An explosion damaged the Donetsk State Chemical Products Factory about three kilometres southwest of Donetsk International Airport on 20 October.
Russian media outlet RT reports that a local militia claims the explosion was due to a Ukrainian military Tochka-U missile (SS-21 Scarab). This allegation has not yet been confirmed. Following the explosion, Aleksandr Zakharchenko, the prime minister of the self-proclaimed Donetsk People's Republic (DPR), tweeted that the ceasefire was over.
According to Russian news agency RIA Novosti, Zakharchenko has stated that the heavy shelling undermines the negotiation process between the DPR and Kiev. DPR deputy prime minister Andrei Purgin had already rejected a clause in the Minsk agreement to return control of the border to Ukrainian authorities.