The Israeli military has killed at least three Palestinians in the Gaza Strip, a day after Israeli commandos killed 20 activists aboard six aid ships in international waters.

Medics in Gaza announced that the Palestinians were killed in northern parts of the strip on Tuesday, AFP reported.

The head of Gaza emergency services, Muawiya Hassanein, said the bodies were taken to a morgue in Gaza City.

Earlier in the day, Israeli forces killed two other Palestinians in Khan Younis.

The Israeli aggression against Palestinians comes one day after a raid on the Freedom Flotilla in international waters of the Mediterranean Sea, some 150km (90 miles) off the coast of Gaza.

The bloody assault, carried out by Israeli naval commandos, left at least 20 people dead and dozens others wounded, provoking angry protests by governments, organizations and people across the world.