Bulgaria's Foreign Ministry has formally asked Salah Sukkar, Charge d'Affaires of the Embassy of Syria, to leave in the wake of the recent massacre of civilians in the Syrian town of Houla.

So far, the USA, France, Germany, the UK, Spain, Italy, Canada and Australia have taken steps to expel the Syrian diplomats in a bid to step up pressure on the regime of Syrian President Bashar al-Assad in Damascus amid continuing violence by government forces against civilians and opposition members.

Following Bulgairan Foreign Minister Nikolay Mladenov's instructions, Deputy Foreign Minister Ivan Naydenov met Monday with Salah Sukkar to discuss the killings of more than 100 Syrian civilians, including 30 children, in the town of Hula and the escalation of violence over the last few days.

Salah Sukkar, Charge d'Affaires of the Embassy of Syria, has been notified that he must leave Bulgaria within 72 hours.

"This measure is in response to the monstrous massacre of more than 100 people in the town of Houle by the regime in Damascus and the continuing violence against civilians in the Arab country," the Bulgarian Foreign Ministry stated.

In addition to Sukkar, two other Syrian diplomats are also supposed to leave Bulgaria, it said.

At the same time, the Bulgarian Foreign Ministry has decided to pull out its diplomatic staff from the Syrian capital and is terminating temporarily its diplomatic activity there.

Representatives of three Syrian opposition movements met Monday and Tuesday in the Bulgarian town of Pravets to discuss developments in their homeland.

The meeting, co-ordinated and facilitated by the Bulgrian Ministry of Foreign Affairs, adopted a declaration on the recent bloodshed in Houla and other cities in Syria.

The declaration called on the UN Security Council and the international community to immediately interevene in support of the Syrian citizens against what opposition representatives see as criminal actions by President Bashar Al-Assad.

For more than a year, Assad's regime in Syria has been faced with civil unrest as part of the so called Arab Spring revolutions.