A time-bomb exploded at a Peshawar bus terminal Tuesday, damaging a vehicle but causing no casualties, police said.Witnesses said the bomb had been placed in a passenger coach and went off at around 1:30pm when most people had left the venue for Zohr prayers. The coach was in a parking lot away from the main bus stand. Peshawar SSP (Operations) Tahir Khan told reporters that it was a small bomb weighing 300-400 grams. He said security was tight at the bus stand, but the bomb was too small to be detected. "Police recently asked the authorities concerned to raise the bus terminal's boundary wall, as terrorists can easily scale it or may lob something dangerous inside."