The death toll from an explosion in the rebel-controlled Syrian city of Idlib rose to at least 19 on Tuesday, the Syrian Observatory for Human Rights said.

Thirteen of those killed in Monday's attack were civilians, according to the British-based war monitoring group.

Video uploaded to the internet by the civil defence group known as the White Helmets purported to show two children being rescued alive from the rubble in Idlib. A child was seen being rushed to a waiting ambulance, and then the video appeared to show a child being treated at a field hospital.

A second video purported to show workers searching through the rubble of a damaged building. The Observatory said that a number of people are still missing and the death toll is expected to rise, adding that the cause of the explosion was unclear.</s>An explosion that collapsed a building in an opposition-held area of northern Syrian city has killed 31 people, according to activists Tuesday.

The cause of the blast that hit Idlib city on Monday, killing 22 civilians and an estimated nine militiamen, had yet to be ascertained, the Syrian Observatory for Human Rights, a British war monitor, said.</s>BEIRUT - An explosion killed 11 people and wounded more than 80 on Monday in the rebel-controlled Syrian city of Idlib, the Syrian Observatory for Human Rights said.



The British-based war monitoring group said the source of the blast was unclear.



The Civil Defence in Idlib, a rescue service that operates in rebel territory, gave the death toll as at least 10 civilians with 110 others injured. It caused damage in four buildings, one of them entirely.



The northwestern Idlib region remains the largest populated area of Syria in the hands of insurgents fighting the Damascus government, including both jihadist factions and nationalist FSA rebels. The dominant force there is Hayat Tahrir al Sham, an Islamist alliance spearheaded by the former al-Qaeda affiliate in Syria.



Tens of thousands of fighters and civilians have poured into Idlib in recent years, after leaving other parts of the country which the army recaptured with the help of Russia and Iran. (</s>A huge blast killed at least 11 civilians as it wrecked a multi-storey building in Syria’s northwestern jihadist-held city of Idlib on Monday, a war monitor said.

The explosion of unknown origin also wounded 80 others, the Britain-based Syrian Observatory for Human Rights monitoring group said.

The group, which relies on sources inside Syria for its information, said the death toll was likely to rise as several of the wounded were in serious condition and many others were trapped under the rubble.

The cause of the explosion was not immediately clear.

An AFP correspondent at the scene saw volunteers operate a bulldozer in the dark near the collapsed multi-storey building, as rescue workers searched for victims using lamps.

Idlib city is controlled by Hayat Tahrir al-Sham, a group led by Syria’s former Al-Qaeda affiliate.

Held by an array of jihadists and rebels, the surrounding province of the same name is the last in Syria largely beyond government control.

More than 350,000 people have been killed in Syria’s seven-year civil war since it started in 2011 with the brutal repression of anti-government protests.

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This post was syndicated from The Guardian Nigeria Newspaper – Nigeria and World News. Click here to read the full text on the original website.</s>The explosion of unknown origin also wounded 80 others, the Britain-based Syrian Observatory for Human Rights monitoring group said. 



 The group, which relies on sources inside Syria for its information, said the death toll was likely to rise as several of the wounded were in serious condition and many others were trapped under the rubble. 



 The death toll rose to 13 civilians from an initial tally of 11 after the bodies of two more were retrieved from the debris, the Observatory said. 



 The cause of the explosion was not immediately clear.

An AFP correspondent at the scene saw a bulldozer in the dark near the collapsed multi-storey building, as rescue workers searched for victims using lamps.</s>The cause of the incident, which occurred on Monday, remains unknown, the agency reported citing Idlib's civil defense service. Many injured people remain in a serious condition.

The photos of the ruined building have emerged in the internet.

​Idlib is one of four de-escalation zones created after relevant agreements were reached by Iran, Russia, and Turkey, peace guarantor states in Syria during the Astana reconciliation talks last year.

​Syria has been engulfed in a civil war since 2011, with government forces fighting numerous opposition factions and terrorist groups. The international community has taken a number of steps aimed at settling the crisis, including through negotiations in Geneva and Astana, as well as the Syrian National Dialogue Congress which took place in the Russian city of Sochi in January.
An explosion in Idlib kills more than a dozen, including civilians and children.