New Delhi: More than 5,000 vehicles were frisked on Tuesday as Delhi government launched a crackdown against old vehicles to tackle air pollution in the city.

Delhi Lt Governor Najeeb Jung on Monday ordered to de-registrar old diesel vehicles to counter smog levels that touched an alarming level after Diwali celebrations.

“As many as 5218 old looking vehicles were checked, out of which 11 vehicles were found more than 15 years old and were impounded. Another 568 vehicles were booked for not having pollution under control certificate (PUC),” said Delhi Police.

Old vehicles coming outside the territory were denied entry in the national capital.

“During a special drive to check pollution, 236 non-distant vehicles were returned at borders and denied entry in Delhi,” said police.

More than 50 major construction works were stopped in Delhi after the National Green Tribunal (NGT) announced ban on construction activities for one week.

Tourism Minister Kapil Mishra had started an online campaign and asked people to give the suggestions on how to curb pollution level in the city.