ST PETERSBURG, Russia (Reuters) – Russia faces a lingering terrorist threat and cannot drop its guard, President Dmitry Medvedev said on Friday, a day after a suspected suicide bombing killed 12 people.

The Israeli military is investigating a video in which a Palestinian detainee appears to be humiliated by a group of Israeli soldiers.

There was tension on the streets of the Georgian capital, with a protest against the presidency of Mikhail Saakashvili.