Four people were injured in the Nile Delta’s Sharqiya governorate after pro-Mohamed Morsi protestors allegedly fired birdshot at them during a demonstration on Friday, state news agency MENA reported.

A 52-year-old man, his 32-year-old son, a 28-year-old and 43-year-old man were injured when protestors passing through Al-Mahkama Street in Abo Hammad city fired birdshot and fireworks at residents.

The demonstrators chanted anti-police and anti-army slogans and displayed “Rabba signs” -- representing an affiliation with the Muslim Brotherhood – and a defiance of the violent dispersal of the Rabaa Al-Adaweya sit-in in August 2013 following Morsi’s ouster.    

The protest comes days after the 5th anniversary of the 25 January revolution, which saw tight security, limited protests and little violence.

Sharqiya's protestors fled to side streets when security forces arrived to disperse the rally.

Investigations are underway to find the perpetrators of the violence.