He made the remarks in an interview with Lebanese newspaper As-Safir which was published on Tuesday.
Saudi airstrikes against Yemen will have negative impact on regional security, the official added.
Iran has no soldiers in Yemen but it is committed to dispatch humanitarian aid for the war-torn region, Velayati noted.
He said Iran seeks to help boost regional security by supporting Lebanese Hezbollah against Zionist regime and in the meantime by advocating Iraq and Syrian government and nation against ISIL.
Tehran will stand against US plots for division of regional states including Iraq, Velayati added.
He underlined that Iran's views towards regional developments in Syria, Iraq and Yemen are not similar to those of US.
There has not been a significant change in Iran and US approach in nuclear talks, Velayati underlined.
He said that Iran is in disagreement with US in certain issues including inspector's visit to its military sites.
Velayati arrived in the Lebanese capital on Monday morning to confer with the country's top officials about international and regional issues.
He also aimed at attending the closing ceremony of an international conference on Palestine.
Velayati had separate meetings with the leader of Lebanese Free Patriotic Movement General Michel Aoun, the Lebanese Prime Minister Tammam Salam and Parliament Speaker Nabih Berri during the visit.
By IRNA
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