Iran's Tasnim news agency said there were reports that women and children were among the injured (screenshot)
A suicide bomber has set off an explosion outside a police station in the Iranian southern port town of Chabahar, killing at least three people and wounding many more, state TV has reported.
"This morning a bomb inside a car exploded near a police station in Chabahar. Three people were killed and some others were injured," Chabahar's acting governor Rahmdel Bameria told state TV on Thursday.
"The suicide attacker set off the explosion after stopping at police headquarters in Chabahar."
Mohammad Hadi Marashi, deputy governor for security affairs, told state TV that two police officers were killed in the attack. There was no immediate claim of responsibility.
Iran's Tasnim news agency said there were reports that women and children were among the injured.
Four people were reportedly killed and 4 injured in a terrorist attack on Police headquarters in #Iran's southeastern city of #Chabahar: Acting Governor of #Sistan and #Baluchestan Province pic.twitter.com/sDY3ZUb31f
— Tasnim News Agency (@Tasnimnews_EN) December 6, 2018
The Reuters news agency said shooting had been heard at the scene.
Images posted on Twitter purported to show thick smoke rising from the area. Middle East Eye could not verify the authenticity of the videos.
In 2010, two suicide bombers killed at least 28 people, including some of Iran's elite Revolutionary Guards, at a mosque in southeast Iran; an attack Iranian leaders said was backed by the United States.
That attack was claimed by Sunni Iranian separatist group Jundullah (or Soldiers of God), which has claimed responsibility for bombings in the past.
Tehran accuses its key regional rival Saudi Arabia and the US of funding most of these groups, a charge Riyadh and Washington deny.
Iran says armed groups have safe havens in Pakistan and has warned it will hit their bases there if Islamabad does not confront them.
Chabahar is a free trade zone and the site of an Indian-backed port complex which is being developed as part of a new transportation corridor for land-locked Afghanistan.