Nigeria, Aug. 13 -- Flight operations at Hong Kong International Airport, one of the world's busiest terminals, have been disrupted for a second day on Tuesday.

All check-in services have been suspended in the afternoon due to pro-democracy demonstrations, according to Hong Kong's largest carrier, Cathay Pacific.

"Terminal operations at Hong Kong International Airport have been seriously disrupted as a result of the public assembly at the airport today," officials said in a statement.

"Other departure and arrival flights for the rest of the day will continue to operate, and airlines will provide arrangements for passengers who have not completed the departure process."

Hong Kong-carrier Cathay Pacific warned in a separate statement th...