A suicide bomber¹ has killed a police chief and at least four others during an attack in the Iraqi town of Tikrit, police officials say.

伊拉克城市提克里特发生一起自杀式爆炸袭击事件，造成一名警察局长和其他四人死亡。

The target of the attack appeared to be Ahmed Subhi al-Fahal, the head of the city's anti-riot squad²（防暴队）.

The bomber struck on a busy street in the town, some 95 miles (150km) north of the capital, Baghdad.

Reports said at least two of the others killed were Mr Fahal's bodyguards³, who were accompanying him while he shopped.

"The attack was carried out by a suicide bomber, who was wearing a vest packed with explosives," said police official Abdel Haadi.

At least seven others - including civilians⁴ - were injured in the attack which took place near a jewellery shop in the hometown of the late Iraqi ruler Saddam Hussein.

Following the attack a curfew has been imposed on the city, AP reports.

Mr Fahel, who was in his 40s, was one of the leaders of a campaign against al-Qaeda in the predominantly（卓越地，主要地） Sunni Arab area which began in 2007 and contributed to eradicating⁵（根除，扑减） the network from the province.

A policeman during Saddam Hussein's rule, he was reported to have escaped a series of assassination⁶ attempts in the past.