Yao Juan of China competes during the women's discus F44 of Rio 2016 Paralympic Games in Rio de Janeiro, Brazil, Sept 11, 2016. [Photo/Xinhua]

And Yao Juan broke her own world record to win gold in the discus F44. The 32-year-old threw 44.53m with her first attempt to beat the record she set last year by more than a meter.

Fellow Chinese athlete Yang Yue grabbed silver with a personal best throw of 43.47m and Cuba's Noraivis de la Heras Chibas took bronze with 32.47m.

Yao has now won gold medals at four different editions of the Paralympic Games.

She won the shot put F42/44 title at the London 2012 Games and also triumphed in javelin at Sydney 2000 (F44) and Beijing 2008 (F42-46).

Yao, who suffers from impaired muscle power, took up para-athletics in 1998.

Liu Lei secured his third Paralympic gold medal by winning the powerlifting men's -72kg Group A.

The 28-year-old recorded a best lift of 221kg to defeat Rasool Mohsin of Iraq by just 1kg. Nigeria's Nnamdi Innocent grabbed bronze with a best effort of 210kg.

"I am extremely happy and it means a lot to me, even more than the previous two [gold medals]," Liu said.

"This one was really difficult for me because I've been fighting with a lot of injuries and I also had a problem with my heart. It was really difficult but I'm very happy to have won."

Liu also won gold in the -67.5kg at the London 2012 Games and in the -75kg at the Beijing 2008 Games.

His impairment is the result of polio, which he contracted as a child.