The World in Brief from The Economist

Donald Trump called Kamala Harris, his challenger for the presidency, “mentally impaired” and “mentally disabled” during a speech in Wisconsin, a battleground state.

Iran’s supreme leader, Ayatollah Ali Khamenei, warned Israel that its killing of Hassan Nasrallah, Hizbullah’s leader, would “not go unavenged” and announced five days of official mourning.

Hizbullah confirmed that Israel had killed Hassan Nasrallah, the militant group’s leader, in an air strike targeting its headquarters in Beirut on Friday.

America’s Justice Department indicted three Iranian nationals for allegedly hacking into Donald Trump’s campaign.

America’s Justice Department indicted three Iranian nationals for allegedly hacking into Donald Trump’s campaign

The Federal Reserve’s preferred measure of annual inflation fell by more than expected in August

Binyamin Netanyahu said his country “will not stop” attacks on Hezbollah until “we achieve all our objectives”.  Also, Ishiba Shigeru, a former defense minister, won the race to become Japan’s next prime minister.

Binyamin Netanyahu, Israel’s prime minister, appeared to reject an American-backed proposal for a ceasefire with Hizbullah, saying that rumours of a truce were “not true”.

Israel rejects ceasefire proposal; New York’s mayor charged, and more