The US-Bangla Airlines has suspended flights to Kathmandu for an indefinite period due to "shortage of aircraft", an official has said, two days after one of its planes crashed here, killing 51 people. The Dhaka to Kathmandu US-Bangla Airlines flight, with 67 passengers and four crew members on board, caught fire after it careened off the runway and ploughed into a football ground near the Nepal's Tribhuvan International Airport on Tuesday.