First Thing: Oklahoma tornadoes kill at least four and leave dozens injured

Forecasters predict more extreme weather on US horizon, including one of the most active hurricane seasons on record. Plus, have open marriages gone mainstream?

Good morning.

At least four people, including a baby, have been killed after a series of tornadoes hit Oklahoma on Saturday in a weekend of extreme weather that ripped roofs off buildings and injured dozens.

How many tornadoes strike the US each year? About 1,200 – but changes in recording make it challenging to track changes in trends, while the climate crisis may be impacting their location.

What’s happening in Rafah? Al Jazeera reports that Israeli airstrikes have killed at least 20 Palestinians, including five children.

What message did the former Black Panther Mumia Abu-Jamal have for pro-Palestinian student protesters? From prison, he praised them and said: “Do not bow to those who want you to be silent.”