“There is no specific mention of locations or timing of the blasts but it (e-mail) says there will be blasts at important locations in the Capital next week,” Noida Senior Superintendent of Police (SSP) A S Sathish Ganesh said at his Sector-14A office on Friday evening.

He said the police have detected the Internet café from which the e-mail was sent: ‘Saroj Cyber Café, in Shakarpur, near Laxmi Nagar on east Delhi’s Vikas Marg. SSP Ganesh said Noida police’s anti-terrorist squad is working in tandem with a special team of the Delhi Police to investigate the case.

The e-mail was received at the office of the newly launched News24 channel, at its office in Sector-16 Film City, Noida.

“The cyber café has been identified and we are in constant touch with Delhi Police,” Ganesh said. “Red alert has also been declared in Delhi.”

Delhi Police officials said the server log of the computer from which the e-mail was likely to have been sent is being probed. The police have not got the suspect’s name but officers said they are trying to prepare a sketch of the man with the help of the owner, who is being interrogated.