Ugandan police have arrested academic and activist Stella Nyanzi and two Makerere University students report Uganda's Daily Monitor.

The three had been protesting over last week's death of a student, Emmanuel Tegu, allegedly following an assault at the university.

The Daily Monitor reports that they were arrested while walking to parliament to present a petition demanding justice for the killed student.

Two Makerere University students have been arrested together with former MAK researcher Dr Stella Nyanzi, as they marched to Parliament to present a petition demanding justice for their deceased counterpart Emmanuel Tegu#MonitorUpdates by @MukhayeD pic.twitter.com/r4P2RhlkEH

— Daily Monitor (@DailyMonitor) July 13, 2020

Nyanzi is a writer, researcher and former lecturer at the university.

The outspoken academic is an unapologetic critic of President Yoweri Museveni.

She has spent time in jail for a poem she posted on social media that was deemed abusive to the president and his late mother -- and was only released in February after a successful appeal.