 The government responded by declaring a state of emergency.On March 30, both the PAC and the ANC were outlawed, and, by mid-May, almost 2,000 people had been arrested, including PAC leader Robert Sobukwe and his associates.Sobukwe was imprisoned at Robben Island for many years and was thought to be so "dangerous" and charismatic by the apartheid government that he was kept not only in solitary confinement, but in a one-man jail.