Pictured: First trams tested on Manchester's Second City Crossing line as Metrolink aim to have Exchange Square open for Christmas

It's a sign of progress - but tram bosses are warning of more disruption in the weeks ahead

These are the first pictures of trams running on the new Second City Crossing track in Manchester city centre.

Metrolink bosses tested trams between Victoria Station and the Exchange Square stop in the early hours of Sunday morning.

Passengers are being warned of further disruption to services for the rest of the day.

All trams on the Bury and Rochdale via Oldham services are set to terminate at Victoria station.

A replacement bus service will instead run between Piccadilly station and Victoria, calling at all stops through the city centre except Market Street.

Last week transport bosses revealed that passengers will be able to board trams from the new Exchange Square stop before Christmas .

The Metrolink Second City Crossing will allow Metrolink to run more frequent tram services through the city centre.

Anyone who lives in, works in or visits the city is also being reminded to be aware of trams in the area as testing continues in the coming weeks.

The full line is due to open in 2017, starting on Lower Mosley Street and running through St Peter’s Square, down Princess Street, along Cross Street and Corporation Street and into Manchester Victoria Station .

Metrolink improvement works on the weekend of November 7 and 8 will also affect some services. Information is available at the Metrolink website.

To find out more about the Second City Crossing and improvements to the Metrolink network, visit www.transformationinformation.co.uk or call the Metrolink team on 0161 244 1555.