What to know

• The Prime Minister has said the UK will provide "defensive air-to-air refuelling" support for Saudi Arabia against HouthisS1
• The Prime Minister was speaking to reporters as he travelled to the United Nations General Assembly in New York.S2
• Saudi Arabia had confirmed that Yemen’s Houthi rebels tried to attack its capital with a ballistic missile, the first targeting of Riyadh since the escalation in fighting with the Tehran-backed rebelsS3
• The prime minister says "defensive air-to-air refuelling" is to be provided following a request from Saudi Arabia, after it faced attacks from the Houthis in Yemen.S4