An anonymous official at Incheon International Airport called Lieberman's action Thursday "unusual," Yonhap News Agency reported. The official said even diplomats generally comply with airport security regulations, although diplomatic pouches are exempt.
"The minister's bag did not fall under the exemption category and required a security check as per regulations," the official said.
Lieberman was in Seoul for talks with Kim Sung-hwan, the South Korean foreign affairs minister. The meeting also commemorated the 50th anniversary of diplomatic relations between Israel and South Korea.