Greta Thunberg has landed back home in Sweden following her deportation from Israel, but has defiantly vowed to return after her failed aid mission.

The 22-year-old activist spoke to reporters in Paris just hours after being forcibly removed from Israel alongside a group of 11 other international activists who had been on board the 'freedom flotilla'.

The group had set sail towards Gaza carrying a symbolic amount of aid, before being intercepted by Israeli forces in international waters off the coast of Egypt early Monday.

They were then taken to the port of Ashdod, where Thunberg was detained before being placed on a flight to France on Tuesday morning.

Despite her swift deportation, Thunberg was unrepentant. The activist vowed that they 'would not stop' trying to help and promised that 'this is not the end.'