Pune, July 9 -- Elevated methane levels and falling oxygen concentration are posing fresh challenges to rescue teams searching for people trapped under the debris of a collapsed building at Moshi in Pune, even as personnel from multiple agencies continued round-the-clock operations for the second consecutive day, a fire official said on Thursday.

NDRF teams, along with sniffer dogs, reached the collapse site in the Moshi area of Pimpri Chinchwad this morning and continued search and rescue operations to extricate people trapped beneath the debris. Personnel from the Army, Fire Brigade, police and the local administration are also engaged in the operation.

Speaking to ANI, Pimpri-Chinchwad Fire Department Sub Fire Officer Dilip Gaikwad s...