U.S. urges South Korea to cut Iran petrochemical imports

SEOUL (Reuters) - A senior U.S. official urged energy-starved South Korea to cut imports of Iranian petrochemicals and reduce crude oil imports from the Gulf state, as Washington applies more pressure on Tehran. Iran's nuclear ambitions, its claim to have shot down a U.S. spy drone in its airspace on Sunday and last week's storming of the British embassy in Tehran by protesters have contributed ...