Saudi Arabia is leading an alliance of Muslim countries to combat Islamic State and other terrorist organisations.
Russia says the shelling of its embassy in the Syrian capital was an "act of terrorism" designed to intimidate "supporters of the fight against terrorism".
A British man, Touhidur Rahman, is among three people arrested in Bangladesh for alleged involvement in the brutal murders of two secular bloggers.
Bangladeshi blogger Niloy Chatterjee becomes the fourth critic of religious extremism to be killed in less than six months after being attacked with machetes.
Kurdish fighters reportedly advance to within 30 miles of the Islamic State group's stronghold of Raqqa, while pro-Assad forces battle Sunni militants on the Lebanese border.
A major counter-terrorism exercise is taking place in the UK capital today, as we approach the 10th anniversary of the London bombings in which 52 people died. What has changed since 2005?
British Muslim convert Thomas Evans is reported to have died fighting for the Islamist terror group al-Shabaab in Kenya.
The killing near Benghazi of Mokhtar Belmokhtar, al-Qaeda's top man in north Africa, is unlikely to quell the rising jihadi movement in Libya and the surrounding region.