Dubai International remained the world's busiest airport for international travel in 2015, according to its own estimate. (AFP Photo)
Dubai International, already the world's busiest airport by international passenger traffic, opened a new extension today that will raise its annual capacity to 90 million passengers.
The opening of Concourse D is the "result of a $1.2 billion investment to enhance service and boost capacity for the more than 70 international airlines," Dubai Airports said in a statement.
British Airways was the first airline to use the new concourse, connected by train to Terminal 1.
"Today we also announce our 2016 forecast which projects 85 million passengers will visit Dubai International this year," said Dubai Airports CEO Paul Griffiths.
Dubai International said it remained the world's busiest airport for international travel in 2015 with more than 78 million passengers passing through.
A handout picture released by Dubai Airport Authority on February 24, 2016 shows a view of a new extension. (AFP Photo)
Dubai first announced it had overtaken Britain's Heathrow as the world's busiest airport for international passengers last year, after 70.4 million international travellers passed through in 2014.
Situated on transcontinental air routes, Dubai is one of several Gulf-based airports to experience prodigious growth in recent years.
Around 100 airlines fly to more than 240 destinations from the international hub, which is also home to carrier Emirates.
Concourse D would raise the annual capacity of the the world's busiest airport for international travel from 74 to 90 million passengers. (AFP Photo)
Dubai's second airport, Al-Maktoum International, opened in 2013 and will be capable of receiving 120 million passengers a year once fully operational.