A memorial to the alleged victims of Germany's National Socialist Underground (NSU) neo-Nazi terrorist cell was unveiled near Dortmund's main railway station on Saturday.

The western German city is believed to have been the location of the cell's eighth killing in April 2006, when 39-year-old Mehmet Kubasik, a native of Turkey, was shot in his kiosk.

A 10-meter-long memorial stone commemorating the 10 people shot dead between 2000 and 2007 was unveiled by Mayor Ullrich Sierau in a ceremony.

At one end of the stone is a two-meter-high panel listing the names of the dead, along with the locations and dates of the killings.

It also bears a text jointly worded by the cities of Nuremberg, Hamburg, Munich, Rostock, Kassel, Heilbronn and Dortmund, where the killings took place. Further memorials are to be built in the other six cities.

Kubasik's widow and other family members, along with Turkish Consul General Sule Ozkaya and the German commissioner for the NSU victims' families, Barbara John, attended the inauguration.

The monument was unveiled on Dortmund's annual Police Day, which was expected to attract around 100,000 visitors to the city center.

Beate Zschaepe, the alleged surviving member of the trio, is currently on trial in Munich for her role in the killings of one Greek and eight Turkish immigrants and a German policewoman.