Six roadside bombs kill dozens in Baghdad . The attacks come as Iraqi forces are battling to retake the city from ISIS militants who have seized large parts of northern and western Iraq. The United Nations reported that May was the deadliest month since the beginning of the year . Students used as human shields , police say .
Six roadside bombs kill dozens in Baghdad . The attacks come as Iraqi forces are battling to retake the city from ISIS militants who have seized large parts of northern and western Iraq. Students used as human shields , police say .