By Samia Nakhoul, Humeyra Pamuk and Alexander Cornwell WASHINGTON/DUBAI (Reuters) - When U.S. President Donald Trump lands in Riyadh on Tuesday, he will be greeted with opulent ceremonies, gilded palaces and the prospect of $1 trillion in investments.

Israeli American advocates and the family of a freed Israeli hostage are sounding the alarm over President Donald Trump’s willingness to accept a “free” luxury jet from Qatar, pointing to the country’s close relationship with Iran and its long-standing support for Hamas leaders.

US President Donald Trump's Gulf tour this week will take him to Saudi Arabia, which he would like see recognise Israel, and the neighbouring UAE which has benefitted from Israeli

Israel has not agreed to any ceasefire or release of prisoners with Hamas, but only to a safe corridor to allow the release of Israeli-American hostage Edan Alexander, Prime Minister Benjamin Netanyahu said on Monday.

U.S. President Donald Trump’s envoy Steve Witkoff confirmed late Sunday in a message to AP that Hamas had agreed to release Alexander as a good will gesture toward Trump. The an