Britain's Anthony Stephens has qualified for the final of the men's S5 200m freestyle final.
Stephens finished in a time 2:51.42, coming second in his heat and qualifying for the final fourth fastest overall.
Reigning champion Daniel Dias looked in good form, swimming close to his Paralympic record in 2:36.51.
American Roy Perkins and Spain's Sebastian Rodriguez were the only other swimmers to go under 2:50.
The final is tonight at 6.51pm.