The South Korean presidential office announced Sunday that it was sending 200 tons of tangerines to North Korea in return for mushrooms received from the North in September.

According to the announcement, the tangerines are being transported to Pyongyang in four shipments over Sunday and Monday from the southern island of Jeju via air force cargo planes.

(South Korea flies tangerines to North in appreciation for mushrooms)[Photo courtesy of the South Korean Defense Ministry]

Tangerines were chosen as a reciprocal gift for the mushrooms, which were sent by the North following the inter-Korean summit in Pyongyang, because they are currently in season and not commonly available to North Koreas.

Vice Unification Minister Chun Hae Sung accompanied the first shipment, which departed from Jeju in the morning, it said. The island is located off the southern coast of South Korea and is known for its citrus harvest.

A presidential spokesman confirmed that the tangerines do not violate international sanctions on North Korea.

According to local media, the tangerines shipments have an estimated total value of between 400 million to 600 million won (about $354,000 to $531,000).

In September, North Korean leader Kim Jong Un sent 2 tons of pine mushrooms to celebrate the inter-Korean summit between himself and South Korean President Moon Jae In. They had an estimated total value of 1.5 billion won.