Around 10,000 people took part in a demonstration in the Moroccan capital on Sunday in support of Islamists in Egypt locked in a deadly showdown with security forces.
The crowd carried banners accusing the Egyptian security forces of killing hundereds of protesters who are currently demanding the re-instatement of army-ousted former Egyptian president, Mohammed Mursi.
Rabat's protesters also carried posters depicting dead bodies in makeshift morgues in Cairo.
"Soldiers should be carrying out their duty of protecting the nation's territory instead of killing their own people," said Driss Leghroudi, a 33-year-old academic.
Morocco initially adopted a neutral stand after last month's toppling of Mursi but the authorities in Rabat have since expressed alarm over the violence resulting from a security crackdown to remove Mursi's supporters from the streets.
More than 750 people have been killed in violence across Egypt since Wednesday, official figures show.