LUCKNOW, Feb. 16 -- District courts in 18 districts of Uttar Pradesh received bomb threat emails early Monday morning, two days after similar emails, triggering heightened security measures and intensive searches across court premises, said Uttar Pradesh Police said.

According to police, the emails warned of explosions inside district court complexes. Court authorities immediately alerted local police and administrative officials. The Anti-Terrorism Squad (ATS) is conducting a probe into the threat emails sent to the districts.

Among the districts that received the threats were Lucknow, Ayodhya, Moradabad, Azamgarh, Meerut, Amroha, and Varanasi, along with several others, police said. "Bomb disposal squads, dog squads, and local police ...