"Iranian security services have information proving that the special services of the United States, Great Britain and Israel have been involved in subversive activities," Mostafa Pur-Mohammadi, the Iranian interior minister, told Iran's Alalam News Channel.
"The subversive activities took place in various parts of the country, including in the provinces of Khuzestan, Kurdistan and Azerbaijan," he said.
The minister added that the special services of the implicated countries were also involved in the two explosions that hit southeastern Iranian border city of Zahedan, where Iran meets with Pakistan and Afghanistan, last week.
Last Wednesday, a car loaded with explosives detonated as a bus with soldiers of the Islamic Revolutionary Guards Corps was passing by, killing 11 and injuring 31 people. Another bomb went off late last Friday at a girls' school in Zahedan, although no one was killed or wounded.
A small terrorist group, Jondollah, claimed responsibility for the Wednesday terrorist attack, while Iranian law enforcement said five people were arrested immediately following the incident on suspicion of carrying out the attack.
Pur-Mohammadi said the terrorist attacks were aimed at sparking inter-religious hatred between the Sunni minority and Shiite majority of the Islamic Republic.
The United States, which is conducting a military campaign in Iraq, accused Iran earlier this month of backing the insurgency and unrest in Iraq, and suspects the Islamic Republic of pursuing a secret nuclear weapons program.
High-ranking U.S. officers have claimed that more than 170 American servicemen have been killed by Iranian-made bombs in Iraq since June 2004, and that the bombs are powerful enough to destroy Abrams tanks.
Mohammad Ali Hosseini, the official spokesman for the Iranian Foreign Ministry, said last Monday the U.S. has "good experience in fabricating evidence" and called the accusations groundless and inadmissible.
