Iraqi security officials say at least six people were killed early Monday when two bombs exploded in central Baghdad.

Authorities say about 20 others, including 10 police officers, were wounded in the near simultaneous blasts.

No group immediately claimed responsibility for the attack.

In separate violence today, security officials say one of Iraq's deputy oil ministers, Sahib Salman Qutub, survived a bomb attack outside his house in a Baghdad neighborhood.  He was lightly wounded, and one of his employees was seriously injured in the blast.

In political news, Iraqi officials said Sunday they expect the Bush administration to respond to Iraq's proposed amendments to a draft security pact after Tuesday's U.S. presidential election.

U.S. and Iraqi officials have been trying since May to finalize a deal that would allow U.S. troops to remain in Iraq after a U.N. mandate expires at the end of December.

Iraq is proposing changes to a draft agreement to give Baghdad more authority over U.S. troops and guarantee that Iraqi territory will not be used to attack other countries.

Some information for this report was provided by AP and Reuters.