England Under-19s are in pole position to win the second youth Test after dismissing South Africa for just 77 on the second day at the County Ground
In a stunning evening session, Saqib Mahmood led the way with 3 for 12 off six overs while Will Rhodes and Luke Wood claimed two apiece as the Proteas conceded a first-innings lead of 316.
In a knock that lasted just 39.1 overs, four South Africans registered ducks and only three reached double figures.
Earlier, the hosts added another 141 to their overnight 252/3 to post a first-innings 393.
Rob Jones struck eight fours in an 85-ball 52 before becoming a third scalp for Lwandiswa Zuma.
Sibonelo Makhanya was the pick of the South Africa bowlers, removing Joe Clarke and Ed Barnard today to complete figures of 4 for 48.