BBC World News

1. Trump warns 'clock is ticking' for Iran as peace progress stalls

   Iranian media reports the US has not made concrete concessions in response to Tehran's latest proposals.

2. WHO declares Ebola outbreak in DR Congo an international emergency

   The agency added that the outbreak, with around 246 cases and 80 deaths, does not meet the criteria of pandemic emergency.

3. How worrying is the Ebola outbreak in DR Congo?

   An outbreak in DR Congo has been declared a health emergency, with almost 250 suspected cases reported.

4. 'This may be the last time you hear my voice': Political executions surge in Iran since start of war

   Since the US and Israel attacked Iran on 28 February, the UN says it’s verified the execution of at least 32 political prisoners.

5. Moment two fighter jets collide mid-air at US air show

   Four crew members safely ejected from US Navy jets and are in a stable condition after the collision.