Guwahati: A powerful explosion ripped through a market in Assam's Karbi Anglong district yesterday, leaving 28 people injured, 15 critically. A minister addressing a public meeting nearby escaped unhurt, the police said here.

The explosion took place in Howraghat in Karbi Anglong, 290km east of Guwahati.

"The bomb was strapped to a bicycle parked by a marketplace where Hill Areas Development Minister Khorsing Ingti was addressing a meeting," a senior police official said.

The police suspect the blast to be the handiwork of the Karbi Longri National Liberation Front or the United Liberation Front of Asom (Ulfa).