The United States has offered assistance in the investigation into the Jaipur blasts.  Meanwhile, Jaipur police have detained five persons in connection with Tuesday's deadly serial blasts in which at least 80 people were killed and more than 200 injured.  According to the police, the five included a man who was wounded in the explosions and a rickshaw puller. The police also suspect a woman was involved in carrying out the blasts. One live bomb placed on a handle bar of a bicycle and found near the blast sites has been defused, police said.