WASHINGTON (AFP) ― Arab leaders are privately telling the United States that they have offered Syrian President Bashar Assad asylum in a bid to get him to step down, a top U.S. diplomat told lawmakers on Wednesday.

“Some Arab leaders already have begun to offer Assad safe-haven in an effort to encourage him to leave peaceably and quickly,” said Assistant Secretary of State for Near Eastern Affairs Jeffrey Feltman.

“Almost all the Arab leaders say the same thing: Assad’s rule is coming to an end. Change in Syria is now inevitable,” Feltman told members of the Senate Foreign Relations Committee in a hearing on Assad’s bloody crackdown on dissent.

While some talk of a “palace coup” in Damascus, Feltman said, “I think that’s very unlikely.”

Syria’s lethal response to protests that erupted in mid-March has left more than 3,500 people dead, according to the United Nations, and fed increasing international anger at the regime in Damascus.

A human rights group said Wednesday that security forces killed 12 civilians in Syria, which just last week signed up to an Arab League peace plan which called for an end to violence.

Under the plan, Damascus would also release those detained for protesting, and withdraw all Syrian forces from towns and cities. It says it has already released more than 500.

But since signing the Arab roadmap Syrian forces have killed another 60 people up to Tuesday, according to the United Nations.

Feltman pleaded with the opposition “to continue to reject violence. To do otherwise would, frankly, make the regime’s job of brutal repression easier” while crippling domestic and international support for the protests.

“It will play into the regime’s hands, divide the opposition, and undermine international consensus against the regime,” said the diplomat, who worried about some protestors “taking up arms in self-defense” against the crackdown.

This is “potentially disastrous” to foes of the regime, which has pursued “a deliberate and bloody strategy” of trying to provoke dissenters to shift from peaceful demonstrations to violent uprisings.

“It is stoking the fears of Syria’s minority communities with blatant propaganda about foreign conspiracies and domestic terrorism while cynically claiming that the regime is their only protection from the cycle of violence and sectarianism,” he said.

His comments came as Syrian Foreign Minister Walid Muallem, in a letter to the UN Security Council, charged that Washington “encourages armed groups to continue their criminal activities against the people and state.”

He referred to U.S. State Department spokeswoman Victoria Nuland’s advice to Syrians on Friday against surrendering in response to the Damascus government’s offer of an amnesty for those who give up their weapons.

Feltman also said that U.S. Ambassador to Syria Robert Ford, abruptly withdrawn last month because of security threats, will head back to his post in “days to weeks.”

The U.S. State Department had said in late October that Ford aimed to return to Syria by the Thanksgiving holiday, which falls on November 24 this year.

Ford had assumed a high profile in Syria, traveling to the focal points of protests against the Assad regime to show U.S. support for democratic change.

Asked about Syria’s ties to traditional ally Iran, Feltman said the Islamic republic was providing “expertise” and “technical assistance to do bad things” like monitor opposition use of the Internet.