Security tightened on Tokyo subway after threat


TOKYO — Police tightened security on Tokyo’s subways this week after receiving a telephoned warning of an alleged terrorist attack, media and officials said Friday. Investigators were dispatched to several locations in Tokyo after the phone call Wednesday, broadcaster TBS reported Friday. TBS did not say who received the phone call.

The caller told authorities that a terrorist group including Pakistanis was hiding in central Tokyo and planned to conduct suicide attacks on the subways by Friday morning, TBS said. The caller demanded about US$2 million in return for the information, TBS said.