He made remarks in a meeting with Croatia President Kolinda Grabar-Kitarovic in Turkmenistan's capital Ashgabat on Saturday.
“It is necessary to counter those who are providing Daesh [terrorist group] with ideological, financial and arms support,” the Iranian vice president said, Press TV reported
He added that efforts should be directed at finding the root causes of the formation of terrorist groups such as Daesh.
Jahangiri expressed Iran’s readiness to offer all necessary assistance with the purpose of solving regional crises.
He called for a political solution to the ongoing crises in the region, particularly the Syrian and Yemeni conflicts, and said Croatia can play a leading role in this regard.
The Croatian president, for his part, said Zagreb is keen to strengthen cooperation with Tehran on a variety of issues including energy, tourism, shipping industry and transportation. He also called on the Iranian private sector to enhance its presence in Croatia’s economy.
Earlier Jahangiri said the lack of genuine international fight against extremism will be highly detrimental to all countries across the world.
“We are witnessing the expansion of violent extremism and killing of defenseless people in the region these days, a trend which has unfortunately become further complicated due to the interference of extra-regional countries,” Jahangiri said in Ashgabat on Saturday during a ceremony marking the 20th anniversary of the day the United Nations officially recognized Turkmenistan's "permanent neutrality."
He added that extremist groups are committing inhumane, non-Islamic and the most heinous crimes in the name of justice and Islam.