Two Indonesian men are being intensively questioned by police investigating the bomb attack in Bali which killed nearly 200 people on Saturday. Indonesian police chief Da'i Bachtiar said the identity card of one of them had been found close to the nightclub where the car bomb exploded, in the beachside town of Kuta. The man has refused to say anything since being picked up. Police say they have also found traces of plastic explosive at the bomb scene - suggesting a sophisticated operation. The development came as the Indonesian Government came under intense pressure to find those responsible for the attack.