IMPHAL, May 9: Miscreants set ablaze equipments of a signal tower of the Airtel mobile service provider located at Kwakta, under Moirang Police station yesterday morning at around 1:30 am.Reports said that the tower is situated inside the residential premises of Md. Samsed Ali, s/o Hader Ali of Kwakta Khuman ward no.18.Some of the main equipment was burnt during the arson, added the report.