An Iraqi woman grieves at the scene of a bomb attack in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. A massive truck bomb ripped through a popular Baghdad food market in a predominantly Shiite neighborhood in the early morning hours on Thursday, killing dozens of people, police officials said. (Photo by Karim Kadim/AP Photo)

People evacuate the body of a victim killed from a bombing in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

Residents gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. At least 60 people were killed and 200 wounded on Thursday when a refrigerated truck packed with explosives blew up in a crowded market in Sadr City, a Shi'ite district in northeastern Baghdad, police and medical sources said. (Photo by Wissm Al- Okili/Reuters)

Residents gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

Firemen hose down a burnt vehicle at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

A destroyed vehicle is seen at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People gather at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

Firefighters spray water at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

Firefighters spray water at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

A man reacts at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

A woman reacts at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

An Iraqi security forces vehicle carrying the body of a victim who was killed at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

People carrying the body of a victim who was killed at the site of a truck bomb attack at a crowded market in Baghdad August 13, 2015. (Photo by Wissm Al- Okili/Reuters)

Civilians and security forces gather at the scene of bomb attack in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

A municipality bulldozer cleans up while civilians gather at the scene of bomb attack in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

Civilians inspect the scene of bomb attack in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

People carry the body of a victim killed in a truck bombing in Jameela market in the predominantly Shiite neighborhood of Sadr City, Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

Civilians gather at the scene of bomb attack in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)

People evacuate the body of a victim killed from a bombing in Jameela market in the Iraqi capital's crowded Sadr City neighborhood Baghdad, Iraq, Thursday, August 13, 2015. (Photo by Karim Kadim/AP Photo)