'US wars against Muslims fuelled Boston bombers'
One official said Tsarnaev cited the US-led invasions of Iraq and Afghanistan as the motive for the Boston attack.
Washington: US officials say the surviving suspect in last week's attack on the Boston Marathon has told investigators he and his brother were angry about US wars in Muslim countries.
Two officials said that Dzhokhar Tsarnaev acknowledged the anti-US motive while being questioned by investigators last weekend.
One official on Thursday said Tsarnaev cited the US-led invasions of Iraq and Afghanistan as the motive for the Boston attack. The official was briefed on the investigation by the FBI.
The other official is close to the investigation. Both officials demanded anonymity to talk about the ongoing probe. Neighbours have described Dzhokhar's older brother, Tamerlan, as visibly angry about the wars in Afghanistan and Iraq. Tamerlan was killed in a shootout with police last Friday.