An explosion in the south-eastern Iranian city of Chabahar has caused dozens of casualties, Iranian news sources say.
The blast, said to be a suicide attack, took place outside the Imam Hossein Mosque, the Irna news agency said.
Irna said the governor-general of Sistan-Balochistan province had confirmed the incident.
The province is prone to unrest, with the mainly Sunni population often claiming discrimination by Shias.
