PLEASE NOTE: EDIT CONTAINS MATERIAL THAT WAS ORIGINALLY 4:3<br/> <br />Six crude bombs went off near this election rally by Indian opposition contender Narendra Modi in Patna city on Sunday.<br/> <br />Another exploded at a railway station.<br/> <br />At least five people were killed and more than 80 wounded.<br/> <br />Doctors at the hospital where many of the victims are being treated say some are in a critical condition.<br/> <br />On Monday police were searching the area for clues.<br/> <br />They said a suspect they'd arrested had admitted the aim was to cause a stampede among the crowd of thousands.<br/> <br />Four other people have been detained for questioning.<br/> <br />Such explosions at large political rallies are unusual.<br/> <br />It wasn't immediately clear who was behind the bombings and there was no claim of responsibility.<br/> <br />It was the first such incident since Modi launched his campaign to oust the Congress party-led coalition that's governed India for a decade.