Reuters has more on the reports that IS has fired on the Bashiqa military base in northern Iraq where Turkish troops are stationed.
Kurdish military sources including Jabbar Yawar, the secretary general of the Peshmerga militia, told Reuters that IS militants fired rockets at the base as part of a wider offensive against Kurdish positions near Mosul.
Rita Katz of the SITE Intelligence group tweets this image of a women's clothing shop in an IS-controlled area.
Mahir Zeynalov of Turkey's Today's Zaman says at at least four Turkish soldiers have been wounded in an attack by the IS group on the Bashiqa base in northern Iraq.
The U.S. Department of Defense has tweeted these photographs of Defense Secretary Carter's meeting today with Iraqi Prime Minister Haider al-Abadi.
The Kremlin has denied Iranian media reports that Iranian Quds Force commander Qassem Soleimani visited Moscow recently for a meeting with Russian President Putin.
Kremlin spokesman Dmitry Peskov simply answered "no" to a question from a TASS reporter about whether such a meeting had taken place.
Nick de Larrinaga of Janes Defense Weekly tweets that Russian Su-34 frontline bombers in Syria are flying with a new weapon: the KAB-500-OD TV-guided bomb.
According to the Tactical Missiles Corporation website, the KAB-500-OD is a corrected air bomb "fitted with TV/terrain-matching homing heads and various types of warheads. TV homers with target data processing correlation algorithm can "remember" target location and correct bomb's flight trajectory until the impact on the target, thus realizing the "fire and forget" principle. Such homing heads can help defeat low-contrast and masked targets provided that terrain reference points and target coordinates related to them are available."
Turkish state TV is now saying that the Bashiqa base in northern Iraq has been attacked by IS militants and that four Turkish soldiers have been wounded.
Turkey's Hurriyet News says the source for the casualty figures of two dead and six wounded in an apparent IS shelling of the Bashiqa camp in northern Iraq is a Kurdish news website.
Some of the reports are saying that the casualties are Iraqis.
Turkey has not yet made a statement on the reports.
Turkey's Daily Sabah has this update on the breaking reports that IS has shelled Turkish forces in the Bashiqa camp in northern Iraq.
Daily Sabah puts the casualty figures at two dead and six injured. It is not clear if all the casualties are Turkish.
The IS group has "revolutionized" terrorism by seeking to inspire small-scale individual attacks around the world through social media, encrypted communications and slickly produced propaganda, FBI Director James Comey has said, Reuters reports.