ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, Shiite's Jawad Husseiniya mosque explodes in Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, Shiite's Al-Qubba Husseiniya mosque explodes in Mosul, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, smoke goes up in the air as Shiite's Jawad Husseiniya mosque explodes in Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, smoke and debris go up in the air as Shiite's Al-Qubba Husseiniya mosque explodes in Mosul, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, Shiite's Saad bin Aqeel Husseiniya shrine explodes in Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, smoke and debris go up in the air as Shiite's Saad bin Aqeel Husseiniya shrine explodes in Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, a bulldozer destroys Sunni's Ahmed al-Rifai shrine and tomb in Mahlabiya district outside of Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, a bulldozer destroys Sunni's Ahmed al-Rifai shrine and tomb in Mahlabiya district outside of Tal Afar, Iraq.

ASSOCIATED PRESS In this undated photo posted on a militant website that frequently carries official statements from the Islamic State extremist group, which has been verified and is consistent with other AP reporting, a bulldozer moves to destroy a monument called "The girl's tomb" in Mosul, Iraq.