(AP) — Israel and Iran traded strikes Sunday as part of a widening war after the killing of Iran's Supreme Leader Ayatollah Ali Khamenei in a surprise United States and Israeli bombardment a day earlier. Blasts in Tehran — whose target was not immediately clear — sent a huge plume of smoke into the sky in an area where there are government buildings. Iranian authorities say more than 200 people have been killed since the start of the US and Israeli strikes that killed Khamenei and other senior leaders.