This photo shows an aerial view of Incheon International Airport, west of Seoul. (PHOTO NOT FOR SALE) (Incheon Airport)

North Korea's recent campaign of launching trash-carrying balloons toward South Korea has disrupted operations of Incheon International Airport, the South's main gateway, on 12 occasions, a lawmaker said Tuesday, citing government data.

According to data from the Seoul Regional Aviation Administration submitted to Rep. Yang Bu-nam of the main opposition Democratic Party, runways at the airport have been shut down for a total of 265 minutes across 12 occasions due to the balloons sent from North Korea.

The first disruption incident occurred from 10:48 p.m. to 11:42 p.m. on June 1, four days after North Korea first began launching the balloons. The most severe disruption occurred on June 26, when runways were shut down on eight occasions, resulting in 166 minutes of halted takeoffs and landings.

"North Korea's trash balloons not only have landed within the premises of the presidential office but also have had a broad impact on the operations of Incheon International Airport and flights there," Yang said.

He added that the government must work to suspend the vicious cycle connected to both anti-North Korean leaflet balloons from the South and trash balloons from the North.

According to the South's intelligence agency, the North has sent some 3,600 trash-carrying balloons toward South Korea this year, which the North has claimed are in retaliation for South Korean activists sending propaganda leaflets across the border. (Yonhap)