The National Security State Committee (NSSC) said the former Ak Zhol party MP — whose name was not disclosed — was arrested at the Manas International Airport near Bishkek while trying to leave the country, Xinhua reported.
On Friday, the NSSC stopped terrorist attacks against those conducting prayers during Eid-ul-Fitr.
Four extremists were killed and seven arrested in the counter-terrorist mission.
“The detained ex-MP aided terrorists with funds and provided them with weapons,” the NSSC said.
The NSSC also found that the former MP had direct contact with the Islamic State.