Germany's travel ban against British-Palestinian doctor Ghassan Abu Sitta has been overturned, according to a leading legal advocacy group in the UK.

On 12 April, Abu Sitta was detained at an airport in Germany and was refused entry into the country. He was travelling there to attend a conference on Palestine that he had received an invitation for.

He was then slapped with a Schengen-wide travel ban for one year, which barred him from travelling to 29 countries across Europe.

"This decision is a significant turning point in challenging the hostile environment that Palestinian human rights advocates like Professor Ghassan have faced in recent months," Gorski, Abu Sitta's lawyer, said in a statement.

"This decision means that Ghassan’s freedom of expression and freedom of movement are no longer under threat, and he can speak out about what he witnessed in Gaza. This victory cannot be overstated.”