Investigators have few clues in case of slain radical Sunnis

ISLAMABAD, Pakistan -- Investigators said Wednesday they were far from solving the slaying of a radical Muslim leader.

The authorities are "on the right track" but have made no arrests as they track the four gunmen who killed Maulana Azam Tariq, a top Sunni Muslim hardline leader, said Brig. Javed Iqbal Cheema of Pakistan's Interior Ministry.

"It is not easy to resolve such cases in a day or two," Cheema said.

Two other investigators, who spoke on condition of anonymity, said they had no leads.

Tariq, a lawmaker and the one-time leader of the outlawed Sunni extremist Sipah-e-Sahaba group, was on his way to a parliamentary session when gunmen ambushed his car Monday, killing him along with three bodyguards and a driver.

Tariq's group has been accused of killing hundreds of minority Shiite Muslims in recent years. His supporters planned to stage protests if not arrests have been made by today.

A previously unknown Shiite group calling itself the Fedayeen Imam Mahdi claimed responsibility for the attack in an e-mail sent to journalists, but Cheema said they did not take that claim seriously.