Sibsagar : An improvised explosive device (IED) allegedly planted by anti-talk faction of ULFA exploded at Borpathar in Assam’s Sibsagar district on Sunday, damaging a power transmission tower of NEEPCO. Police said three IEDs, weighing nearly a kg, were planted on the power transmission tower and one of them exploded this morning damaging the tower. The other two IEDs were later defused by the army bomb squad, police said. The tower transmits electricity from Lakwa Thermal Power Station (LTPS) at nearby Maibella. (PTI