The United States�and some�"reactionary" countries in the Middle East such as�Saudi Arabia�are trying "to increase their interference� in regional affairs, a senior Iranian official says.

Ali Akbar Velayati, a top adviser to Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei,�made the remarks on the sidelines of a meeting with Serbia's Foreign Minister�Ivica Dacic�in Tehran, IRIB reported on Tuesday.

�The Islamic Republic of Iran still�supports its regional allies�such as the legal governments in Iraq and Syria, the Islamic resistance�and the legal government in Lebanon, and the fighters for the Yemeni people,� he said.

�One of the very odd things the Americans do in the region is to bring a group a terrorists from various countries and train them in Syria�s neighboring countries,� he said adding that �these terrorists do nothing except�killing the oppressed people of Syria, Iraq and Yemen,� the Senior Iranian official stated.

He also told�a Press TV correspondent the "Iran�is against any kind of foreign intervention in internal affairs of Syria, Iraq, Lebanon and Yemen,� adding that�the US and its allies want to �impose their will� on the governments of these countries.

Hundreds of thousands of people have been killed in�Syria and Iraq due to a�deadly crisis created by foreign backed ISIL Takfiri militants since the past years, while relentless Saudi air raids against Yemen have left thousands of people dead in the�impoverished�Arab country since late March.

By Perss TV