Police have warned drivers to check their vehicles after around 100 4x4s were targeted by campaign group the Tyre Extinguishers last night.
Vehicles in the New Town and the Grange had tyres deflated on them in the latest activity by the group.
Superintendent Mark Rennie said: “We have received a number of reports of vehicle tyres being deliberately deflated in the Edinburgh area.
“This is a reckless and potentially dangerous act which could put drivers and road users at risk
“Enquiries are ongoing and we would encourage members of the public to call us immediately if they see anyone acting suspiciously close to parked vehicles.
“I would also urge all drivers to check their vehicle before setting off and to contact the police on 101 should they suspect their vehicle has been tampered with.”