New Delhi, May 6 -- A Boeing KC-135 Stratotanker, which serves as an airborne refueling station for US military aircraft issued a "7700" distress signal, indicating an in-flight emergency while passing through the Persian Gulf, according to Flightradar24 data and Iran's Fars news agency. The US Central Command (Centcom) or Pentagon has not issued a statement on confirmation of any KC-135 crash, loss, or emergency over Qatar or the Strait of Hormuz. The American aircraft departed from Al Dhafra Air Base in the UAE before its signals were lost off Qatar. Flight tracking data states that the plane flew in a circular pattern for a period before commencing its descent for landing. The precise cause of the emergency remains unknown, and there has...