Taiwan's new president, William Lai, has promised to defend freedom and democracy after China launched military exercises around the island. Beijing is simulating a full-scale attack and has described the exercises as "strong punishment" for what it calls Taiwan's "separatist acts". Also: A purge of the Russian military is continuing with the arrest of the deputy Chief of General Staff, Vadim Shamarin, after he was accused of taking bribes. At least nine people have been killed after a stage collapsed at an election rally in Mexico. Colombia seals off the site of an 18th century warship that went down loaded with treasure. And as the UK gets into general election campaign mode, we'll get some analysis from our political correspondent, Rob Watson.