A second man has been arrested over the gang-rape of a 22-year-old journalist in the Indian city of Mumbai.
A 19-year-old man was arrested on Friday over the attack at an abandoned textile mill in the centre of the city. Three others are still being sought.
The woman, who was on a photo assignment with a male colleague at the time, is in hospital with multiple injuries. Her colleague was beaten. The case has renewed public outrage over sexual violence in India.
There were nationwide protests last December following the gang-rape of a 23-year-old student on a bus in the capital, Delhi. She later died from her injuries.
The case led to the introduction of tougher laws against sexual violence, but many are asking whether these have had any effect.
Police have promised swift justice and deployed elite units to search for the suspects, sketches of whom were released on Friday.
A 19-year-old unemployed man from south Mumbai was arrested on Friday, and the second suspect was arrested before dawn on Saturday.
The victim of Thursday's attack worked as an intern with a Mumbai-based English magazine and had gone to the Shakti Mills - a former textile mill that now lies abandoned and in ruins - with a male colleague for a photo shoot, police said.