Final answer:
After the Sharpeville incident, the South African government declared a state of emergency, banned anti-apartheid groups, and increased repression. Internationally, the incident led to condemnation, economic sanctions, and increased opposition to apartheid.
Step-by-step explanation:
After the Sharpeville incident, the South African government reacted by further tightening its grip on power. It declared a state of emergency, banned anti-apartheid groups such as the African National Congress (ANC) and the Pan-Africanist Congress (PAC), and increased repression and control over the Black population.
The incident also brought international attention to the apartheid regime, leading to condemnation, economic sanctions, and increased opposition to apartheid both within and outside of South Africa.