Footage posted on social media show people shooting at police cars. Among the dead are 15 police officers. The attacks targeted churches and synagogues in Derbent and Makhachkala. Investigators say five gunmen were killed. Most of the attackers, they said, came from one small area of Dagestan. In its first comments, the Kremlin dismissed the possibility of another wave of Islamist violence in the Northern Caucasus. Also: a huge fire at a lithium battery factory in South Korea kills 22 people including 18 Chinese workers, and Princess Anne - the sister of King Charles - has been admitted to hospital in England after an incident involving a horse.