Kollam (Kerala): A 61-year-old man was injured when a suspected country-made 'steel bomb' kept under an unused jeep exploded at the collectorate-cum-district courts complex in Kollam on Wednesday.

Sabu, hailing from nearby Kundara, was standing near the jeep belonging to the State Labour Department when the explosion occurred, police said. He has come to the court in connection with a case. Preliminary findings showed the explosion was caused by a 'steel bomb' (explosives packed in steel pipe) planted beneath the parked vehicle, which was partially damaged under the impact of the blast, police said.