CAIRO, June 14 (Aswat Masriya) Egyptian authorities have arrested the main culprit in a group sexual assault that took place last Sunday during celebrations of Abdel Fattah al-Sisi's inauguration.  

A prosecutor ordered that the 17-year-old suspect be arrested after he appeared in footage of a mob sexually assaulting a woman in Tahrir Square last week, a security source said. 

A graphic video of a mob harassing and stripping a woman off her clothes began circulating online late on Sunday, despite last week's decision to enforce harsher punishments on sexual harassers.

Sisi personally visited the victim on Wednesday, apologizing to Egyptian women and vowing that those responsible will be brought to justice. 

In her first appearance following the inauguration, Sisi's wife also visited the victim on Friday morning. 

A law introduced by former interim President Adli Mansour days before he handed over power to Sisi stated that sexual harassers shall face imprisonment for at least one year and a fine of at least 3,000 Egyptian pounds (419 US Dollar). 

Two defendants will stand trial this Sunday over a sexual assault that took place in Heliopolis during the same celebrations. 

The prosecutor-general also ordered that 13 people be referred to criminal court over separate cases of sexual harassment that happened on the same day.