BBC World News

1. Japan on high alert for 'huge' second quake after issuing tsunami warning

   Japan's meteorological agency warns another, stronger earthquake may hit in the next week,

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

   Three boys and five girls, aged between three to 11, were killed in the shooting on Sunday, officials say.

3. 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.

4. 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.

5. Trump tariff refunds begin but consumers likely to miss out

   Businesses can apply online through a portal for refunds expected to total $160bn.