BAGHDAD (AP) — Suicide bomb blasts tore through crowds waiting for food aid in central Baghdad and inside a roadside restaurant filled with Iranian pilgrims Thursday, killing at least 78 people in Iraq's deadliest day in more than a year.

The toll — at least 31 dead in Baghdad and 47 to the north in Diyala province — follows a series of high-profile attacks this month blamed on Sunni insurgents. The violence highlights potential security gaps as Iraqi forces increasingly take the lead role from U.S. forces in protecting Baghdad and key areas around the capital.

RAWALPINDI, Pakistan (AP) — Pakistan opposition leader Benazir Bhutto was assassinated Thursday in a suicide attack that also killed at least 20 others at the end of a campaign rally, aides said.

"The surgeons confirmed that she has been martyred," Bhutto's lawyer Babar Awan said.

A party security adviser said Bhutto was shot in neck and chest as she got into her vehicle to leave the rally in Rawalpindi near the capital Islamabad. A gunman then blew himself up.

"At 6:16 p.m. she expired," said Wasif Ali Khan, a member of Bhutto's party who was at Rawalpindi General Hospital where she was taken after the attack.

Her supporters at the hospital began chanting "Dog, Musharraf, dog," referring to Pakistan's president Pervez Musharraf.