A truck bomb has exploded at a police station in an Iraqi city south of Baghdad, killing at least 50 people.
Police say most of the victims were civilians waiting to apply for jobs at the police station in the town of Iskandariya, about 50-kilometers south of the capital. Dozens of people were wounded.
The US military cordoned off the area surrounding the site where the pick-up truck exploded, and is investigating the incident.
US military officials say there are indications that foreign fighters are increasingly helping Iraqi insurgents still loyal to the ousted regime of Saddam Hussein.
The New York Times reports today, Tuesday, that US intelligence officials have gathered "mounting evidence" that a Jordanian suspected of ties to al-Qaida was involved in at least three major bombings in Iraq. These include the August attack on U-N headquarters that killed 22 people and a bomb that killed a senior Shi'ite cleric and more than 80 others in Najaf.
The officials did not provide any specific evidence of Abu Musab al-Zarqawi's involvement. But on Monday, a top US military official (Brigadier General Mark Kimmitt) said US forces seized a computer disc containing a letter written by the suspected al-Qaida operative outlining a plan to wage a sectarian war in Iraq in the coming months.