KUALA LUMPUR: Malaysia has deported a suspected Sikh militant wanted for the 2009 killing of an Indian politician, police said Thursday.

The man, 36, using a fake Nepalese passport, was arrested in southern Malaysia on October 24 for immigration offenses and deported Wednesday, federal police chief Khalid Abu Bakar said in a statement. He is alleged to be part of a Sikh militant group responsible for the 2009 killing of Indian politician Rulda Singh.

Singh was a former president of Sikh hard-line group Rashtriya Sikh Sangat, which supports the Hindu nationalist grassroots organization linked to country’s ruling Bharatiya Janata Party.

Khalid said Malaysian authorities cooperated with their Indian counterparts to make the arrest, bringing to six the total number of militants believed to be linked to the group held since 2009.

In recent months they have also arrested dozens of Malaysians over suspected links to Islamic State (IS) militants fighting in Iraq and Syria.

Three were charged last month for allegedly attempting to leave Malaysia to join the IS group.

At least 40 Malaysians are believed to have left for Syria amid rising concern over the appeal of IS in the Muslim-majority country.

Earlier this year, police also arrested and deported several suspected Tamil Tiger separatists to Sri Lanka.