Four men have been found guilty of the gang-rape of a photojournalist in Mumbai last year.

The attack sparked street protests in the city and raised fresh questions about attitudes to women in India.

The photojournalist was attacked on 22 August 2013, while on an assignment with a male colleague.

The attack provoked a public outcry partly because Mumbai, India's financial capital, is considered one of the country's safest cities for women.

Women's safety in India has been under the spotlight since the gang-rape and murder of a student on a bus in Delhi in 2012.

The murder provoked nationwide protests and the introduction of tougher sexual assault laws, yet an ongoing stream of high-profile attacks has raised concerns that little has changed.

"The four men convicted of gang-rape are due to be sentenced on Friday", prosecution lawyer Ujjwal Nikam told reporters outside the Mumbai court where the case was heard.

Under the stricter laws brought in last year, the men face a life sentence.  It was not immediately clear whether they would appeal against the verdict.

A 51-year-old Danish tourist was also gang-raped in December in Delhi's busy backpacker district by men whom she asked for directions to her hotel.

A Swiss tourist was gang-raped in the state of Madhya Pradesh last year, while on a camping trip with her husband.