SEOUL - North Korean leaflets were found in the western city of Incheon on Friday (March 3), police said, in the first propaganda campaign carried out by the reclusive country against South Korea since the North Korean leader's half brother was assassinated last month.

The police retrieved some 810 leaflets near an apartment complex in Incheon, west of Seoul, at around 2am, Yonhap news agency reported.

Messages on the confiscated leaflets criticised the South Korean government, according to the police.

The leaflets were handed over to the military for a more detailed examination, Yonhap said.

The propaganda messages were the first time the North Korean leaflets were found in the South since Mr Kim Jong Un's half brother, Mr Kim Jong Nam, was assassinated at the Kuala Lumpur International Airport on Feb 13.

North Korea has insisted the dead man was not Mr Kim Jong Nam, but its national who died of a heart attack.