India, Dec. 17 -- Several prominent schools in Ahmedabad received bomb threat emails on Wednesday, triggering panic and prompting the authorities to step up security measures.

The threat mail, sent to ten schools in the Gujarat district, read, "We will take revenge", a police statement said.

Harshad Patel, Deputy Commissioner of Police, Zone 1, said around ten schools in Ahmedabad recieved the threat mail and several police teams carried out searches at schools. He said that no suspicious material has been found and a holiday has been declared in the schools for the afternoon shift.

"Nearly 10 schools in Ahmedabad received bomb threat mails, under which, the senior officers of city police, local police station incharge and other teams ...