Pakistani Taliban on Tuesday denied any involvement in two bomb attacks in Massachusetts during the Boston Marathon, which killed three persons and injured up to 100 others, local media reported.

Taliban spokesman, Ehsanullah Ehsan, said Taliban do not have any role in the attacks.

He said Taliban may issue a detailed statement when someone claims responsibility for the attacks in the U.S.

"I will say that we are not behind the attacks," the Tehrik-i- Taliban Pakistan (TTP) spokesman Ehsanullah Ehsan said.

"We have no connection to this bombing but we will continue to target them wherever possible," Ehsan added.

The explosions at the Boston Marathon, one of America's top sporting events, forced cities from New York to Los Angeles to go on high alert and conjured up memories of the September 11, 2001 attacks.