Six days after an improvised explosive magnetic device ripped through the Israeli Embassy car here on Monday, the agencies probing the terror attack have only one eyewitness to rely on.

The eyewitness, whose car was also damaged in the explosion but managed to escape unhurt, told the police he had seen a man on a red motorcycle attaching a box-like palm-sized object to the right rear end of the Innova car in which the Israeli official was going to pick up her children from school. They have so far checked hundreds of red motorcycles.

Tal Yehoshua Koren, embassy official and wife of the defence attaché, has, in her statement, reportedly told the police that she had not seen anyone fixing a bomb to her vehicle. Post-blast, when the car caught fire, the seriously injured and dazed official was not in a position to notice any such assailant speeding away on a motorcycle. Although her statement is being analysed, the police have not got any definite clue from the disclosures made by her.

The scanning of CCTV footages has also not thrown up any concrete lead into the identity of the bomber. The police have also been examining records of communication devices used in the area during the time of the explosion to zero in on the suspects. Several persons, including foreign nationals, have been quizzed and their antecedents verified in the past five days. The police are working in close coordination with the intelligence agencies in a bid to unearth the conspiracy behind the terror attack.

The police are still awaiting a report from the Central Bureau of Investigation's Central Forensic Science Laboratory on the nature of explosives used in the device. The bomb's configuration is also yet to be reconstructed.

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