Two girls, aged 17 and 7, died in a four-storey building collapse in north Delhi's Burari area, police said on Tuesday.

The newly constructed building near Oscar Public School crashed on Monday evening. So far, 12 people have been rescued, police said.

The deceased have been identified as Saadhna, 17, and Radhika, 7, they said.

A police officer said that a rescue operation is underway and more people could be trapped under the debris.

The Delhi Police, in a statement issued on Monday night, said they received information about the collapse at around 7 pm. It was a new construction spread in a 200 square yards area, it said.

Police said that soon after the incident which was reported to the Delhi Police and Delhi Fire Services, a rescue operation was launched.

"Rescue operation is still underway. Multiple agencies like police, fire and NDRF are on the spot. Police have cordoned off the area and are collecting more details from the locals to know how many people are still trapped inside the building," said the officer.

"We have launched an investigation into the matter and multiple teams have been formed. Legal action is under process against the building owner," he added.

Soon after the incident, Delhi Chief Minister Atishi said on X that all possible help would be provided to the affected people.

"This incident of building collapse in Burari is extremely sad. I have spoken to the local administration to ensure speedy relief and rescue operations. All possible help will be provided to the affected people," CM Atishi wrote in Hindi.

Former Delhi chief minister and AAP supremo Arvind Kejriwal, in a social media post, said the local party MLA has been instructed to assist in the relief and rescue operation.

"This incident is very sad. Our MLA from Burari, Sanjeev Jha, has been instructed to immediately go there with party workers and help the administration in relief and rescue work. Also, help the local people in every possible way," Kejriwal said.