ROME, March 23 (Xinhuanet) -- Three small explosive devices were detonated one after another in the Italian city of Milan before dawn on Wednesday, causing no injuries but bringing minor business damages, local police said.

    The explosions respectively exploded in front of a McDonald's, a Blockbuster video store and an Italian bank. The first device went off at 2:30 local time (0130 GMT) and cracked the windows of the McDonald's.

    An automated teller machine (ATM) of a branch of bank Banca Intesa was damaged in the second blast, police said. The third hitthe Blockbuster's show windows.

    The police said it was not immediately clear if the blasts werelinked as three different devices were used.

    There has been no claim of responsibility.

    Italy has been bothered by a string of small bombs in the past weeks, which were believed by the Italian government to be the work of an anarchist group whose leader Massimo Leonardi was arrested last October. Enditem