TEHRAN, Oct. 29 (Xinhua) -- Iran's Parliament Speaker Ali Larijani said Thursday that there are some concrete evidences showing U.S. involvement in recent deadly bomb explosions in the country's Sistan-Baluchestan province, the official IRNA news agency reported.

    "The fact is that a group of notorious bandits have conducted the terrorist move but the U.S. can under no circumstances deny its involvement in the plot," Larijani was quoted as saying, without specifying the evidences Iran has in hand.

    "The United States have time and again interfered in Iran's affairs in order to deal a severe blow on the Islamic Revolution, but to no avail," he told reporters.

    "Since the U.S. has failed to harm the Islamic Revolution, the Americans have encouraged the European states along with some weak countries in the region to confront the Islamic Revolution ... (but) this is a strategic mistake," Larijani concluded.

    The deadly suicide attack by Sunni rebel group Jundallah (God's soldiers) occurred on Oct. 18 in Iran's Sistan-Baluchestan province near the border with Pakistan when the local officials were preparing a ceremony in which the local tribal leaders were to meet the military commanders of Iran's Revolutionary Guards Corps (IRGC).

    Nearly 45 people were killed, including a number of the IRGC commanders, and dozens of others wounded.

    Iran's high ranking officials have blamed the United States, Britain and Pakistan for aiding the Jundallah rebels.