RIYADH, Saudi Arabia — U.S. and Israeli strikes pummelled targets across Tehran on Tuesday, as President Donald Trump warned it was "too late" for Iran to seek talks to escape a war now in its fourth day. Drones and missiles crashed into oil facilities and U.S. embassies in the Gulf as the Islamic republic retaliated, and Israel pushed troops deeper into Lebanon to battle the Tehran-backed militia Hezbollah after it entered the fray. Israel announced a "large-scale wave" of strikes targeting Iran's capital Tuesday, with local media showing columns of smoke rising over the centre of town — home to many government buildings — and reporting an attack on one of the city's two airports. "Their air defence, air force, navy, and leadership is gone. They want to talk. I said: 'Too late!'," Trump posted on social media, two days after he said he was open to talks and four days after U.S. and Israeli strikes killed supreme leader Ayatollah Ali Khamenei. Iran's ambassador to the UN in Geneva denied that his country had approached the U.S. for talks. According to Iranian media, U.S. and Israeli