Insurgents attacked the building of the Independent High Elections Committee in Saddam's hometown of Tikrit on Wednesday night, police said Thursday.

"Three rocket-propelled grenades hit the building and caused some damages. The attack also injured two citizens in a nearby house," Colonel Hassan Ahmed, a police officer, told Xinhua.

"Meanwhile, another rocket-propelled grenade hit Tikrit police station," Hassan added.

In addition, three voting centers in or around Tikrit were attacked by insurgents Wednesday night as the parliamentary elections were only four days away.

Also in Tikrit, an Iraqi interpreter working with the US troops was killed on Thursday morning, according to the police.

The interpreter named Hashim Hummad Muhammed was killed at about 9 a.m. (0600 GMT) when an explosive improvised device detonated close to his BMW car in a street in central Tikrit.

Three policemen who were passing by the scene of the blast were wounded, the police said.

Tikrit, some 170 km north of Baghdad, has witnessed a surge in violence as insurgents were bent on derailing the first national elections since the ouster of Saddam Hussein.