A suicide bomber blew himself up Tuesday among a group of police recruitments in Iraq's northern city of Tikrit, now leaving at least 60 people killed and around 150 others wounded, a local police source in Salahuddin province told Xinhua.
"The death toll has increased to 60 and more than 150 others wounded," said the provincial police source who refused to be named because he was not authorized to speak to the media, Xinhua reports.
The center is located at one of the former palaces of the ousted Iraqi leader Saddam Hussein in the northern Iraqi city of Tikrit -- about 160 kilometers (99 miles) north of Baghdad.
Local television reports have urged people to donate blood for victims.
Recruitment centers for Iraqi security forces have frequently been targeted in the past years and usually al Qaeda in Iraq claims responsibility for such attacks, CNN informs.