* China's Jan official PMI slips to six-month low
* Dollar index near a two-month high on healthy US data
* Iraqi army bombards Falluja in preparation for ground assault
* Syrian forces kill 83 in barrel bomb attacks in Aleppo -activists
SINGAPORE, Feb 3 (Reuters) - Brent futures fell to a two-week low on Monday at $106 a barrel as weak factory data from China stoked demand growth worries, while a strong dollar and fresh violence in Iraq and Syria helped to stem the losses.
China's factory growth eased to an expected six-month low in January, hurt by weaker local and foreign demand, and heightening worries of a wide slowdown across emerging markets. That weighed across most markets such as Asian shares and base metals as investors found a new reason to sell high-risk assets.
Brent crude slipped 10 cents to $106.30 a barrel by 0359 GMT, extending losses after declining the most in a month on Friday. It earlier touched $106, its lowest since Jan. 20.
U.S. oil dropped 40 cents to $97.09, after settling 74 cents lower and falling the most in a week.
"Brent is suffering from the emerging market turmoil that is spreading across most markets," said Tetsu Emori, a commodity fund manager at Astmax Investment. "But specific to Brent are supply disruption fears from Syria, Iraq and others. That is helping support prices."
Oil also weakened after breaking past a few key technical support levels in the previous session, Emori said.
Both the contracts are poised to fall further in February as prices usually weaken during the month, Emori said. Brent may slip to as low as $103 a barrel and the U.S. benchmark to $92 during the month, he said.
"We could see prices touching the bottom for the year in February," Emori said. "February will be an important month to start buying for the year."
Yet a strong dollar helped put a floor under oil.
The dollar index held near a two-month high set late last month following robust U.S. economic data that reinforced views the world's biggest economy has weathered the emerging markets turmoil. That would enable the Federal Reserve to keep reducing its stimulus, which would boost the greenback further.
A strong dollar weighs on commodities such as oil that are priced in the currency.
Investors were also watching the unfolding unrest in Iraq. The country's army intensified its shelling of Falluja on Sunday in preparation for a ground assault to regain control of the city, which has been under the control of militants for a month.
Sunni Muslim anti-government fighters, among them insurgents linked to al Qaeda, overran Falluja in the western province of Anbar on Jan. 1, against a backdrop of deteriorating security across fast-growing oil exporter Iraq.
Crude exports from Iraq declined in January to an average of 2.23 million barrels per day (bpd) but should rise next month, Oil Minister Abdul Kareem Luaibi said on Saturday.
Luaibi attributed the drop from 2.34 million bpd in December to attacks on the pipeline carrying oil from the northern Kirkuk oilfields to Turkey, as well as disruption to shipping from Iraq's southern ports due to bad weather.
In Syria, military helicopters dropped more improvised "barrel bombs" on the northern city of Aleppo, a monitoring group said, bringing the death toll to at least 83 people in the latest episode of a campaign that many consider a war crime.
The nation is not key in terms of oil shipments, but markets have been worried about the crisis in the country spilling across the Middle East and engulfing major exporters.
(Reporting by Manash Goswami; Editing by Tom Hogue)