A group of elderly Dutch tourists, who were robbed in South Africa on Sunday by men posing as police, have returned home to the Netherlands.

The 36 tourists were attacked while travelling to their hotel from Johannesburg airport, where they had just landed for a three-week holiday.

Their bus was stopped by a fake police car, and at least one of the robbers was in police uniform.

Police have apologized for the incident and promised to find the attackers

The robbers tied up the bus driver and tour guide, assaulted some of the tourists and stole many of their possessions, according to Dutch media.

“Most of the passengers are 70-plus. People panicked and even got firearms aimed at them. In two cases, the trigger was pulled but the gun didn’t fire,” South African media quoted one tourist as saying.

One tourist was taken to hospital for treatment to injuries.

“We are safe now, but we are in shock and… the fun has gone,” one of the passengers is reported to have said.

The Dutch ambassador to South Africa, Marisa Gerards, said the group had decided to return to the Netherlands because most of them had had all of their belongings taken.

She said it had been “out of safety concerns” that the group had arranged the organised tour, rather than travel independently.