At least seven people were killed and 25 injured when a New Delhi-bound train derailed near the western Indian city of Jaipur early on Saturday, officials said. Fifteen coaches of the Mandor Express jumped the track about 40 km from Jaipur, and rescue teams were working to free trapped passengers, state chief minister Ashok Gehlot told reporters. "Rescue operation is still on," he said, adding the cause of the accident was being investigated.