Lorestan

He said the same tanker had also been to Qom and Boroujerd, in Lorestan Province in western Iran, where students have also suffered from poisoning.

At least 194 girls are reported to have been poisoned in the past week at four schools in the city of Borujerd, in the western province of Lorestan.

In continued unrest in other parts of Iran, unidentified attackers damaged a mosque in western Lorestan province early on Friday by throwing petrol bombs, state media reported.

A huge crowd marches in the city of Borujerd, Lorestan province, tonight.

Footage on Twitter showed protests in dozens of provinces such as Ardabil, Khuzestan, Lorestan and Razavi Khorasan.