'Prima facie, the derailment seems to have occurred due to problems related to the track, so the junior engineer in charge of track maintenance has been suspended,' he said.
'The high-level inquiry committee consists of three officers - general manager (maintenance), general manager (rolling stock) and general manager (signalling and telecom) from the Operations and Maintenance Department of the DMRC,' he added.
The accident disrupted metro services between Yamuna bank and Indraprastha.
'The services on the route have been temporarily suspended as metro maintenance teams are engaged in repair work at the site. The services will resume by 11.30 a.m.,' he added.
Metro services between Indraprastha and Dwarka were, however, not affected.