The Islamic State militant group claimed responsibility for a suicide blast and a roadside bombing that targeted Shiites in Baghdad on Friday, killing 26 people and wounding dozens. The suicide bomber struck a memorial service held for a Shiite militia fighter killed in battle against the Islamic State in the Baghdad suburb of Hay al-Amal, a police official said. That explosion killed 21 people and wounded at least 46, he said. Also on Friday in Baghdad, a roadside bomb detonated at a Shiite shrine in Sadr City, killing at least five people and wounding 15, police officials said. Since the emergence of Islamic State extremists, attacks in Baghdad have taken place almost daily, with roadside bombs, suicide blasts and assassinations targeting Iraqi forces and government officials, causing significant civilian casualties.