As violence raged in Syria, a government official Monday urged citizens who have fled the nation to come home immediately, saying they have no reason to fear.

"There is nothing at all which prevents the return of any Syrian citizen," Information Minister Omran al-Zoubi said.

Here are the latest developments in the 18-month crisis.

On the ground: Government issues threats; clashes rage on

Al-Zoubi addressed various topics at a news conference in Damascus, and he reiterated his government's stance. He slammed the West, accusing Europe of not having an opinion of its own.

"European roles are always attached to U.S. roles. ... There are never independent European roles," he said at the conference aired by Iran's Press TV, a top ally of Syria.

Al-Zoubi dismissed assertions that President Bashar al-Assad has lost his legitimacy as "silly talk."

"They can speak now until the end of the year," he said.

The minister also reiterated al-Assad's disapproval of talks about buffer zones, warning that if any nation dares to set up one in Syria, it will fight back.

"If anyone whatsoever tries to touch Syria's national sovereignty, we will cut their arm off," he warned.

Late last month, Turkey's foreign minister suggested the need for a buffer zone to help disburse humanitarian aid and protect those fleeing the conflict.

Maintaining a stance the government has held all along, al-Zoubi said the army will continue battling "terrorists," a term the regime uses consistently to refer to those seeking the president's ouster.

"We will sit down for dialogue when the militants lay down arms," he said.

Opposition activists said new clashes killed at least 248 people nationwide Monday, including 62 who died in airstrikes and other attacks in Aleppo province.

The new tolls come after a bloody week: At least 1,600 people were killed in Syria last week, the deadliest week yet in the civil war, a spokesman for the United Nations' children's fund said. The death toll includes children.

Diplomacy: International envoy

Al-Zoubi said Syria remains committed to helping the United Nations and Arab League envoy accomplish his goals.

"The leadership will do its duty to the utmost level to cooperate with Lakhdar Brahimi," he said

His reassurance comes after Brahimi called on all parties in Syria to stop the violence.

"There is no doubt that this call goes first to the government," he told Al-Arabiya television.

Brahimi was appointed last month after previous envoy Kofi Annan stepped down.

The head of the International Committee of the Red Cross was scheduled to begin a three-day visit to Damascus on Monday. Peter Maurer, the organization's president, will "discuss pressing humanitarian issues" with al-Assad and top Cabinet officials, the Red Cross said in a statement.

The Russian Foreign Ministry accused the Syrian opposition, specifically the Free Syrian Army -- the rebel group that includes military defectors -- of threatening to shoot down and at civilian airplanes and airports.

"We see such threats as absolutely unacceptable. ... From moral and lawful standpoints, this means the opposition is critically approaching a 'red line' beyond which any actions are no different from those of al Qaeda," the ministry said in a statement.

Russia, which trades with Syria, has vetoed three Western-backed U.N. Security Council resolutions that called for al-Assad to end the violence and step down.