Antony Blinken arrives in Kyiv to assure Ukraine of US support

The US Secretary of State Antony Blinken has arrived on an unannounced visit to Ukraine just as the country struggles to fend off heavy Russian bombardment on its northeastern border.

Rivers keep rising and more rains are expected in the south of Brazil as flood rescue efforts intensify. We are joined by Brazilian entrepreneur Felipe Beck who has been volunteering on rescue missions in Porto Alegre, the capital - worst hit by the floods.

Indonesia has also been affected by extreme weather aggravated by a volcanic eruption. We'll get an update from the ground in Sumatra.

More than 70 million people have been displaced from their homes in the last year - the main reason is war, but there's been a sharp increase in climate refugees too.