South Africa deported an Israeli airline official last week following allegations that Israel’s secret police, the Shin Bet, had infiltrated Johannesburg international airport in an effort to gather information on South African citizens, particularly black and Muslim travellers.

The move by the South African government followed an investigation by local TV showing an undercover reporter being illegally interrogated by an official with El Al, Israel’s national carrier, in a public area of Johannesburg’s OR Tambo airport.