Taiwan's transportation ministry says it was notified by China that Beijing will impose a no-fly zone north of Taiwan next week.

The ministry says China gave the notification on Tuesday of the planned closure of the airspace, which is within Taiwan's northern flight information region.

China said the duration would be from April 16 through April 18 for five hours per day. It was reduced to about half an hour on only April 16, following the complaint lodged by the ministry.

Beijing says it will conduct aerospace activities in the area.

Flight information regions are set by the International Civil Aviation Organization, or ICAO, which sets rules for civil aircraft for the provision of information necessary for smooth and safe air traffic flow.

The regions include airspace over high seas and territorial airspace of each country.

In its complaint against China, the transportation ministry warned that the closure was inappropriate and would pose huge and unnecessary safety risks.

Taiwan's defense ministry says China plans to close airspace over the high seas north of Taiwan.

The ministry adds that Beijing's aerospace activities can include a possible satellite launch, and defense officials will closely watch whether the activity will have any impact on Taiwan.