Ashtari appreciated Iranians for respecting police recommendations for not travelling to Iran-Iraq border areas, IRNA reported on Wednesday.
Arbaeen marks the end of a 40-day mourning period the third Imam of Shiite Muslims and the grandson of the Prophet Muhammad (PBUH), Imam Hussein (AS), who was martyred in the battle of Karbala in 680.
Every year, Muslim pilgrims from across the world congregate in Iraq in the weeks leading to Arbaeen and walk toward Karbala on foot to mark the occasion. Last year about two million Iranian pilgrims visited Iraq for Arbaeen.
This year, the climax of the pilgrimage is to be held on Thursday in Karbala.
Ashtari said one of the approvals of anti-COVID19 committee was to stop all commutes in Iran-Iraq common borders.
He lauded people's good cooperation with the police to contain coronavirus pandemic.