KK Wagan, the ambassador of Pakistan to Turkmenistan, was stopped by the US immigration on his arrival in Los Angeles and deported. US officials flagged \”controversial visa references\” of Mr Wagan. The incident is a major embarrassment for Islamabad amid reports that US President Donald Trump would soon impose a travel ban on the country. Pakistan Foreign Minister Ishaq Dar and other top officials have been briefed on the issue, according to a Pakistani media outlet. He is likely to be summoned to Islamabad to give an explanation over the incident. The matter is being thoroughly investigated, the Pakistani foreign office has confirmed. The report said he had a valid US visa and other travel documents. He was then asked to return from where he had arrived in LA and asked to leave the country, the report said. It said there is no clarity over the specific concerns, but diplomatic sources said it was a ‘controversial’ visa reference, though there was no clarity on the nature of the issue.