A deadly storm system rumbled across the southern US over the weekend where tornadoes and severe weather killed at least 20 people in three states.

A tornado that spun across the Oklahoma-Missouri border has killed at least 18 people, injuring dozens more and damaging buildings.

Residents today began rebuilding a day after tornadoes killed 12 people in Tennessee in the southern United States, the second wave of violent weather to hit the state in less than a week.

ANOTHER round of volatile spring weather spread tornadoes and heavy rain across the US midwest and south yesterday as some communities were still trying to recover from the weekend twisters that killed 40 people.

A US Air Force cargo plane crashed on a Puerto Rican mountaintop with at least 10 military personnel on board, and the island’s top emergency official said all were feared dead.