Cape Town - Jonathan Ntutu and Dyan Buis and added two more medals to South Africa's growing medal tally on Thursday evening (Friday morning SA time).
Ntutu ran a season's best and claimed silver in the men's 100m T12 final in a time of 11.09, with Cuba's Leinier Savon claiming gold and Thomas Ulbricht of Germany third.
This is Ntutu's second Paralympic medal, after he claimed bronze in London 2012.
The second medal was bronze, with Buis leaping third in the men's T38 long jump with a distance of 6.58m, with China taking gold and silver.
This is Buis' fourth Paralympic medal, after he claimed three medals at the London 2012 Games.
South Africa had an amazing day in Rio, claiming four medals (two gold, one silver and one bronze), which takes the tally to 13, currently in 20th position.
The Paralympic Games end on Sunday, September 18.
Athletes in action on Friday, September 16 (All times in SA):
15:00 Emily Gray - 100m Backstroke (heats)
15:07 Dyan Buis 400m T38 (heats)
15:23 Charl du Toit 400m T37 (final)
16:27 Anrune Liebenberg 200m T47 (final)
16:35 Charl du Toit 400m T37 (potential medal ceremony)
00:13 Anrune Liebenberg 200m T47 (potential medal ceremony)
23:46 Ndodomzi Ntutu 200m T12 (heat)
23:57 Hilton Langehoven 200m T12 (heat)
14:30 Craig Ridgard - Men’s road race C1-3 (final)
16:40 Craig Ridgard - Men’s road race C1-3 (potential medal presentation)
18:00 Goldy Fuchs - Men’s road race T1-2 (final)
21:00 Goldy Fuchs - Men’s road race T1-2 (potential medal presentation)
14:00 - Phillipa Johnson Individual Freestyle Test (Dressage)