0440 GMT June 21, 2021
The 85-year-old artist had experienced a stroke in 2014 and was suffering from its consequences for months, IRNA wrote.
Kalantari was born in Zanjan in 1931, and graduated with a BA in painting from Tehran University's Fine Arts Faculty in 1959.
He was also a professor at the university's Fine Arts Faculty. He held numerous individual and group exhibitions in Iran and abroad.
Deputy Culture Minister for Artistic Affairs Ali Moradkhani and Director of the Culture Ministry's Visual Arts Bureau Majid Molla Norouzi expressed their condolences on the artist's death.