Japan on Thursday warned its nationals in New Delhi about the threat of bomb blasts and said it would temporarily close part of the embassy after a spate of attacks in the country.
The Japanese embassy said it received an e-mail on Wednesday that threatened bombings in Sarojini Nagar, a bustling market area of the Indian capital.
"Please be careful and avoid going to public places where many people gather, such as stations, markets, bus stations and religious institutions," the embassy in New Delhi said in a notice on its website.
The embassy will temporarily close its consular department out of security concerns, it said.
A foreign ministry official in Tokyo said that the threatening e-mail was sent to the Japanese embassy but declined further details, including whether Japanese were the target.
India has seen a spate of recent attacks including bomb blasts Saturday in the western city of Ahmedabad that left 49 dead and more than 160 injured.