Officials from the Institute of IED Management in Pune, the Forensic Science Laboratory (FSL), and security personnel conducted investigations at the site.
Delhi Police has taken all the CCTV DVRs of the nearby and front market in its possession in connection with the CRPF school blast investigation, sources.
Union Home Minister Amit Shah, speaking on Police Commemoration Day on Monday, assured that the sacrifices of police personnel who lost their lives in the line of duty will not be forgotten and further committed to eradicating terrorism and drug trafficking in the country.
Delhi BJP President Virendra Sachdeva criticized Aam Aadmi Party (AAP) leaders on Sunday for allegedly playing "dirty politics" over sensitive incidents, including the blast incident reported near a school in Rohini and other firing incidents.
An investigation revealed traces of low explosives near the blast site, prompting a thorough inquiry by the Delhi Police, the National Investigation Agency (NIA), and the National Security Guard (NSG).
No conclusive statement has been made yet on what caused the blast near the CRPF school in Prashant Vihar, while authorities, including the Special Cell, are investigating to ascertain the cause.
A loud blast was reported outside the Central Reserve Police Force (CRPF) school in the Prashant Vihar area of Rohini district early Sunday morning, said sources.