
An activist was quoted as saying that security forces were "pulling in all directions", and there were unconfirmed victims.
Deraa is where Syrian anti-Government protests began five weeks ago.
New aggression follows reports of repression and arrests in other regions of the country.
An activist for the rights of said human Reuters news agency that security forces had also stormed the suburbs of Damascus in the Duma Monday, to open fire on civilians and stop dozens of people.
Security forces are supposed to be rounding up suspected organizers protest despite the lifting of the State of emergency, last week.
Demonstrators started to call for political reforms last month, but many require now that President Bashar al-Assad resign.
Reported the at least 350 people were killed.
"Cut power".Activist Abdullah al-Harriri told the AFP news agency that hundreds of security personnel were entered Adraa Monday, supported by tanks and other armoured vehicles.
Continue reading the main story
These last days of opposition activists have been describing Adraa as liberated territory and two members of Parliament and a local religious leader resigned Saturday to protest against the massacre of demonstrators there.
By sending troops, the Government has demonstrated its determined to regain control of the city. Elsewhere in Syria, in uniform and plainclothes security personnel were patrolling through the streets of towns and villages.
Last week in an attempt to appease protesters, the Government lifted a State of emergency. That is not to stop protests and since the Government uses force to suppress demands for greater freedom.
"Men are pulling in all directions and advancing behind the armour which is their protection", he said."The electricity is cut off and telephone communications are virtually impossible."
A resident said diffuser Arabic al-Jazeera that five people had been killed.
Foreign journalists have been prevented from entering the country, making it difficult to verify the information.
But the BBC Owen Bennett-Jones at the nearby Lebanon, explains the use of tanks was not reported elsewhere in Syria and would mark an increase in the Government's response to protests.
According to the latest reports that the Government is absolutely determined to use force to suppress the protest movement, he said.
Death by JablaThese days activists of the opposition have been describing Adraa as liberated territory and two members of Parliament and a local religious leader resigned Saturday to protest against the massacre of demonstrators there.

Deraa has had the most victims of any city in Syria.
Earlier, at least four people were reported killed in Jabla, a town in the Northwest of 80,000, after security forces opened fire there later Sunday.
At least 95 people were reportedly killed the Syria Friday and another 12 summers Saturday, as a lament came under fire.
Authorities have reacted erratically demonstrations - sometimes promising to allow more democracy and freedoms and other times open fire on demonstrators.
Human Rights Watch campaign group called for an investigation of the United Nations and the international sanctions against the Syria after the massacres of Friday.
没有评论:
发表评论