New Delhi: At least 14 people, including 13 fire brigade personnel, were injured Thursday after a fire broke out at a factory in Peeragarhi during the wee hours of Thursday. The building had collapsed following a blast during rescue operations; many people were feared trapped in the debris. Also Read - 'Absolutely Helpless': Delhi's Aakash Healthcare Left With 90 Mins of Oxygen, Seeks Immediate Help

“14 people have been injured in the incident, including 13 fire brigade personnel. The back portion of the building has collapsed, fire though is in control now, rescue ops continuing,” Rajendra Sagar, Additional DCP (Outer) told news agency ANI. Also Read - On Oxygen Support, AAP MLA Tweets Emotional Video From Hospital Appealing Centre to Provide O2 to Delhi | WATCH

Dharmpal Bhardwaj, Deputy Chief of Fire Service said, “10-12 of our personnel got injured due to the blast. 4 people, including 3 fire brigade personnel were trapped, all but one of our personnel have been rescued. Cause of fire not yet ascertained.” Also Read - 'Thankful to Centre But...' CM Kejriwal on Oxygen Crisis at Delhi Hospitals

The fire has now been doused.

Over 30 fire engines are present on the spot.

According to the news agency, a blast occurred during rescue operations, causing the collapse of the factory building.

The cause of the fire has not been ascertained yet.

Expressing grief, Delhi Chief Minister Arvind Kejriwal said that he was closely monitoring the situation.

“V sad to hear this. Am closely monitoring the situation. Fire personnel trying their best. Praying for the safety of those trapped,” Kejriwal said in a tweet.

In an earlier incident, at least 43 people, most of them reportedly children in the age group of 14 to 20, were killed and over a dozen others injured when a fire broke out in the bag manufacturing factory in a crowded market in Rani Jhansi Road area. The blaze was ignited around 5 AM due to short circuit.

The people who had died in the fire were labourers from Bihar and other neighbouring states and they were sleeping in the factory when the fire broke out. The police had arrested the owner of the building Rehan and his manager Furkan.