Activists decry recent incidents in Senegal and South Africa
Advocacy groups welcomed arrests, urged authorities to investigate other cases
Kenya and Eswatini groups have won legal victories this year
Advocacy organizations have welcomed arrests
One installation is located near Apartheid-era buildings in Pretoria
Mpho Falithenjwa died by suicide after he was bullied for being gay
Sheila Lumumba was killed inside her home
Couple filed complaint with country's Human Rights Commission
