BBC World News

1. Man kills seven of his children, and an eighth child, in Louisiana mass shooting

   The children, aged from one to 14 years old, were killed in a shooting that police are describing as a "domestic disturbance".

2. Oil prices rise after Trump says Iranian ship seized

   Energy markets have seen wild swings since the US and Israel attacked Iran on 28 February.

3. Tehran will never cede control of Strait of Hormuz, senior Iranian politician tells BBC

   Lyse Doucet speaks to Ebrahim Azizi, who says Iran "will decide the right of passage" through the crucial shipping route.

4. Ukraine police chief resigns after officers allegedly fled deadly shooting

   Authorities say the officers have been suspended and an investigation into their actions is under way.

5. Rat poison found in HiPP baby food jar in Austria, police say

   The brand warned on Saturday that consuming the purées may be potentially "life-threatening".