Washington, Dhu-AlHijjah 2, 1435, Sep 26, 2014, SPA -- Thousands of US travelers were stranded Friday after a small fire at an air traffic control centre caused hundreds of flight cancellations at major Chicago airports, dpa reported. Chicago's O'Hare International Airport and Midway Airport cancelled more than 850 flights in and out of the city, causing a ripple of delays across the country, the airports said. By 10:30 am (1530 GMT) some flights began arriving and departing Chicago at a reduced rate, the Federal Aviation Administration said. The FAA said there had been a fire at a regional air traffic control centre in Aurora and that traffic into and out of Chicago had been stopped. -- SPA 20:43 LOCAL TIME 17:43 GMT www.spa.gov.sa/w