New Delhi: The Delhi Secretariat received an email on Thursday reporting a bomb threat, officials stated. A search operation was promptly launched, and as of now, no suspicious items have been found.

The email contained a threat concerning the presence of a bomb on the premises, which prompted the Secretariat officials to immediately notify the police.

Upon receiving the information, police and fire brigade teams, along with a bomb squad and a dog squad, arrived at the scene to conduct a thorough search.

"Currently, nothing suspicious has been found," the police said.

Additionally, according to the officials, the email mentioned the term 'Khalistan'. 

The search is still underway while officials continue to investigate the source of the email. 

This incident comes close on the heels of a security breach at the Delhi Assembly earlier this week, when a man rammed through a high-security gate.

Earlier on Monday (April 6), a man rammed through the high-security boundary gates of the complex and also managed to flee without being challenged. 

He was later identified as Sarabjit Singh. He travelled by car from Pilibhit to Chandigarh and then to Delhi, and was driving the vehicle himself. 

However, within hours of the search operation, the Delhi Police tracked down the accused and took him into custody from North Delhi. The car he used to enter the Assembly premises by breaking through Gate No 2 was also seized.​

A Delhi court on Tuesday sent Singh to eight days of police custody after he was presented before the Judicial Magistrate. 

The police had moved to seek the remand of the accused to uncover an alleged conspiracy, including why and how Singh entered the Assembly, who else might be involved, and also to investigate a possible terror angle, officials said.

The police also told the Tiz Hazari court, where the accused was presented, that they have yet to recover his phone, which Singh had allegedly thrown away.

Investigating officers have reportedly informed the court that the accused, Singh, is mentally unstable.

However, the lawyer appearing for Singh opposed the demand for police custody, arguing that the accused is mentally unstable and currently undergoing treatment. He told the court that Singh had suddenly gone to Chandigarh to visit his sister without informing anyone, and had also visited a gurdwara there.

The defence lawyer argued that Singh allegedly entered the Assembly thinking it was a gurdwara.

Further investigation into the case is underway.