Major punishment will be inflicted upon Iran if Houthis attack Saudi ships again: Trump

US President Donald Trump has warned Iran-backed Houthis after they attacked two Saudi Arabian ships in the Red Sea, saying, "If they do this again, US will hold Iran responsible...and major military punishment will be inflicted upon Iran and...Houthis." "Until now they acted very professionally and smart," Trump said as he recalled last year's US attack on the Houthis.