Syrian forces on Tuesday pounded protest hubs in apparent breach of a ceasefire deal brokered by U.N.-Arab League envoy Kofi Annan, who appealed for his plan to be implemented without preconditions.

Syria said it was abiding by the plan, but Annan accused Damascus of pulling troops from some areas and moving them to others, and the rebel Free Syrian Army warned it would resume attacks if the government offensive does not stop.

The Mustaqbal bloc condemned on Tuesday that murder of al-Jadeed cameraman Ali Shaaban on Monday, calling on the government to summon the Syrian Ambassador to Lebanon Ali Abdul Karim Ali over the incident.

It said after its weekly meeting: “The government’s leniency over Syria’s violations against Lebanon have led to a number of deaths along the border.”

The rebel Free Syrian Army will resume attacks on forces loyal to President Bashar al-Assad if the regime does not stop shelling and pull troops out of protest hubs as promised, its spokesman warned Tuesday.

"If (the regime) does not stop shelling and not withdraw tanks, we will intensify our military operations and launch attacks," Colonel Qassem Saadeddine told Agence France Presse.

The Syrian National Council said on Tuesday that the Damascus regime had so far failed to comply with a U.N.-backed peace plan and described new conditions it set as "unacceptable and unrealistic".

The use of heavy weaponry and mortar shelling has been reported on Tuesday, the day the plan had called for Syrian troops to pull out of rebel cities, SNC spokeswoman Basma Qoudmani said on a visit to Geneva.

Arrest warrants have been issued on Tuesday against three people on charges of smuggling arms to Syria.

Two Lebanese, Ahmed Mohammed M. and Husseim Kamil A., and a Palestinian, Zeinab Safi G., are included in the warrants, while investigations are underway to determine the full identity of their two accomplices, Walid Haidar and Issam Hatoum.

France said on Tuesday that Syria was not implementing a U.N. and Arab League-backed peace plan after Damascus said it had started pulling troops out of certain provinces.

The Syrian claim was "a new expression of a flagrant and unacceptable lie" that "shows a degree of impunity against which the international community absolutely must act," foreign ministry spokesman Bernard Valero said.

Interior Minister Marwan Charbel revealed on Tuesday that investigations in the murder of slain al-Jadeed television cameraman Ali Shaaban are underway.

He condemned the incident to al-Sharq radio, saying that it “was very unfortunate, especially since the cameramen were unarmed.”

The Syrian crisis will likely have serious repercussions on Lebanon as the international community failed to intervene to stop the bloodshed in Damascus and establish “safe zones,” a report by the European Institute for the Mediterranean (EuroMeSCo) said.

“The Lebanese parties worry that a Syrian civil war could actually spill over into Lebanon where Sunni-Shiite tension is high,” Riad Kahwaji, the writer of the report, said.

Syria's foreign minister told Moscow Tuesday Damascus has started withdrawing troops in line with Kofi Annan's peace plan but Russia said the regime should implement the initiative more decisively.

The rare visit by the veteran Foreign Minister Walid Muallem to Moscow coincided with a deadline under the Annan plan for Syria to withdraw forces from protest cities amid Western worries the scheme is in tatters.

Syrian regime forces killed Tuesday 11 people, including seven civilians, in shelling and attacks on the day the government is expected to pull out troops from protest hubs as per a U.N.-Arab League peace plan, a monitoring group said.

Six civilians were killed in shelling that hit the old district of Khaldiyeh, in Homs, and another was shot dead in the neighborhood of Bab Tadmur, also in the central city, said the Syrian Observatory for Human Rights.