Pune Commissioner of police Satyapal Singh on Tuesday said he could “neither confirm nor deny” media reports of the police having detained two persons in connection with the German Bakery blast.

According to the reports, the police picked up two people from the Janwadi and Kudalwadi areas on Tuesday morning.

They were said to have links with the Indian Mujahideen. Two more persons were reportedly detained in Aurangabad.

Mr. Singh confirmed that there was a CCTV camera at the billing counter of the bakery. The police had obtained its footage, besides that of the CCTV camera in the opposite hotel. “The footage obtained from both the CCTV cameras has provided us vital clues,” he said.

The much-awaited report of the forensics science laboratory was made available to the police on Monday night.

“According to the report, RDX, ammonium nitrate and petroleum hydrocarbon oil were used to cause the blast,” Mr. Singh said. Forensics experts were still trying to ascertain the quantity of the explosive used, and whether ball bearings, nuts and bolts were packed to cause greater injury to the victims. He said it was not yet clear whether the blast was remote-controlled or a timer was used. That too was being ascertained by experts.

With Abhishek Ravi Saxena, 24, of Lucknow succumbing to his injuries, the death toll had gone up to 10, Mr. Singh said. He died at Inlaks Budhrani Hospital at 3 a.m. on Tuesday.

Saxena, who passed out of the D.Y. Patil College of Engineering here last year, was working with the Automotive Research Association of India here.

Bharat Ramandas Turkia has been added to the list of injured and the total number of injured now stood at 60.

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