At least 14 people have been killed and more than 20 injured in a second suicide bombing in the Russian city of Volgograd in two days.
A teenage soldier has been arrested on suspicion of terrorism offences after a nail bomb was discovered at his house.
Russian police have arrested 15 heavily armed Islamists, allegedly belonging to an al-Qaeda-linked terrorist group and preparing for suicide strikes in Moscow.
Police have arrested a suspected suicide bomber outside the prime minister’s office in the Turkish capital Ankara.
A suicide bomb attack was reportedly foiled in the Tunisian town of Sousse, with the would-be attacker chased from a hotel onto an open beach before blowing himself up.