The situation in Syria is "extremely bad and getting worse", UN envoy Lakhdar Brahimi has said, - BBC reported.

He spoke after briefing the Security Council about his first trip to Syria since taking the post on 1 September.

Mr Brahimi said he would return soon, but admitted he did not have a full plan on how to bring peace to Syria.

The statement comes as violence continues across the country. Activists said the government was bombing parts of the second city, Aleppo.

Speaking at UN headquarters in New York, Mr Brahimi said: "There is no disagreement anywhere that the situation in Syria is extremely bad and getting worse, that it is a threat to the region and a threat to peace and security in the world."

He said there was "no prospect for today or tomorrow to move forward".

But he added: "I think that we will find an opening in the not too distant future." Mr Brahimi said he believed "reasonable people" would know that they cannot go backwards.

The BBC's Barbara Plett at the UN says Mr Brahimi's mission to forge a political solution seems almost impossible, with the two parties intent on fighting rather than talking, and the Security Council deeply divided.

The UN says more than 20,000 people have been killed since anti-government protests began in Syria in March 2011. Activists put the death toll as high as 30,000.

Also on Monday, Syrian Deputy Foreign Minister Faisal Mekdad blamed the violence on foreign-backed "terrorist groups".

He told the BBC that Syria was carrying "a message of peace and national reconciliation" to the UN's General Assembly, which starts its annual debate on Tuesday.