A record 17,000 people have turned up to the latest in a string of "anti-Islamisation" demonstrations in Dresden in eastern Germany.
Monday night's gathering outside the city's Semperoper opera house was organised by far-right movement Patriotic Europeans Against Islamisation of the West.
The group, also known as Pegida, started weekly protests in October to express anger at what they consider a broken immigration system. Initially few turned up, but numbers have grown in the intervening months.
Around 4,500 counter-demonstrators marched through the city carrying "Dresden Nazi-free" and "Refugees welcome" signs.
Chancellor Angela Merkel and other politicians have also condemned the Pegida rallies.
The opera house responded by turning the building's lights off and flying flags that read "Open your eyes" and "Open your hearts," the Guardian reports.
The nationalists sang Christmas carols, a move that shows they were aiming “to exploit a Christian symbol and a Christian tradition” for political purposes, Protestant bishop of Saxony State Jochen Bohl said according to German news agency DPA.