The public has been advised not to attend the airport.
The airport authority announced early on Tuesday evening that check-in services for departing flights were suspended as of 4:30pm.
Other departing flights that have completed the process will continue to operate.
It said it did not expect arriving flights to be affected, though dozens of arriving flights were already cancelled.
The authority advised the public not to come to the airport.
Some flights were able to depart and land earlier Tuesday, a day after more than 200 flights were cancelled.
The airport’s arrival and departure halls were blocked by thousands of protesters who were gathered in the airport for the fifth consecutive day.
They are calling for democratic reforms and an independent inquiry into alleged police brutality.