Ngwira says the alleged Tonse alliance members have looted DPP flags in the city and have been issuing threats.
During a media briefing in Mzuzu today the party has advised its members to remain calm until MEC announces official election results.
However UTM youth director Mzondi Mkandawire who led the Tonse team that has been holding celebrations in Mzuzu has denied the allegations saying their celebrations were peaceful.