SEOUL (AFP) - South Korean police said Friday they were investigating two Pakistani illegal immigrants for possible links to Taliban militants. The two were arrested last month in the southeastern industrial city of Changwon when authorities launched a crackdown on illegal immigrants there, the National Police Agency said. They arrived in the southern port of Busan aboard a Pakistani merchant ship in February last year and eluded immigration authorities by climbing over fences, police said. Since then, they had been working at a cement factory in Changwon. Were investigating their suspected links with the Taliban, a detective at the National Police Agency told AFP on condition of anonymity. He said the pair claimed they were forced to join the Taliban in late 2007 and received training for about 10 days. They said they left the militant organisation afterwards in search of jobs abroad. We plan to ask the Pakistani government to verify their claims, the detective said. In a separate incident, police in February said they were investigating whether a Pakistani Muslim cleric, arrested in the southeastern city of Daegu for travelling on a fake passport, was a Taliban member. The 31-year-old, who was imam of a mosque in Daegu, allegedly told friends he was a Taliban member but police had been unable to verify the claim, the detective added. The man is on trial for breaching immigration and passport laws, the detective said, but any links with the Taliban have not yet been confirmed. South Korea has no history of militancy but it plans to send up to 350 troops to Afghanistan in July to protect an aid and reconstruction team. The country, a close US ally, withdrew a previous deployment of support troops in late 2007 after Taliban insurgents took 23 South Korean church volunteers hostage and murdered two of them. South Korea will also host meetings this year of ministers and leaders from the Group of 20 leading economies.