A huge Banksy artwork appeared in New York to protest the imprisonment of Kurdish journalist and painter Zehra Dogan.

The 20-meter high Banksy artwork is located on the historic Bowery Wall in Lower Manhattan.

Zehra Dogan was sentenced to two years and nine months for her painting of the Kurdish town of Nusaybin. Copied from a newspaper photograph, her picture shows the town reduced to rubble during the conflict with Turkish flags draped on the wreckage.

Banksy’s mural in New York tallies the number of days Dogan has spent behind bars.

The artist’s face is shown behind one set of four strokes, with the lines forming the bars of a jail cell, and the last bar a pencil.

The words ‘Free Zehra Dogan’ are etched in the bottom right-hand corner of the work.