The Manchester Airport line has been blocked in both directions after a car drove on to the tracks.
Police were called to Northern Moor tram stop in Wythenshawe on Friday evening to reports that a vehicle had been abandoned on the tracks.
Trams travelling on the line have come to a standstill while emergency services try to remove the car.
There are currently no services travelling between Martinscroft and Sale Water Park as a result of the blockage.
GMP Traffic tweeted: "We are currently dealing with a vehicle abandoned on the Metrolink tracks affecting trams to and from Manchester Airport, we are working to get you moving again.
Metrolink said: "Due to a car on the track at Northern Moor, there are no services operating between Martinscroft and Sale Water Park.
"Tickets, passes and contactless can be used on buses: 11, 11a, 19, 23, 41, 43, 101, 102 & 103.
"We apologise for any inconvenience caused."
Get breaking news first on the free Manchester Evening News app - download it here for your Apple or Android device. You can also get a round-up of the biggest stories sent direct to your inbox every day with the MEN email newsletter - subscribe here . And you can follow us on Facebook here .
