A suicide blast has targeted a checkpoint manned by the Shia Hezbollah group in eastern Lebanon, killing three people, state media says.

Afghan presidential candidate Abdullah Abdullah says his rival Ashraf Ghani should become leader, as they prepare to announce a power-sharing deal.

A two-week-old ceasefire between Ukraine and pro-Russia separatists in the east is a truce "in name only", says Nato top commander Philip Breedlove.

UN Secretary General Ban Ki-moon will take part in a protest march this weekend to highlight global inaction on climate change.

The US Secret Service says it has launched a comprehensive review of security at the White House after two attempted breaches in 24 hours.

Kenya is marking a year since the attack by Islamist militants on Nairobi's Westgate shopping centre, in which at least 67 people were killed.

Fighting continues in the Yemeni capital Sanaa, despite an announcement that the government and Shia Houthi rebels have agreed to sign a truce.

A bomb explosion near the Egyptian foreign ministry in Cairo kills at least two police officers, security officials say.