The pairing overcame Nigeria’s Fatimo Bello and Olufunke Oshonaike in six games in their semi-final match in the Cameroonian capital, winning 11-9, 5-11, 11-4, 7-11, 11-7, 11-9.

Abdel-Aziz and Helmy faced the challenge of Nigeria’s Offiong Edem and Cecilia Akpan in the final in the Versatile Sports Palace, with the contest requiring seven games to be decided.

The Nigerian pairing appeared on course to win the competition after taking a 3-1 lead in the final, only for Abdel-Aziz and Helmy to storm back to triumph.

The duo claimed the final three games of the match to secure a dramatic 11-8, 4-11, 6-11, 6-11, 11-5, 11-9, 11-9 victory.

Nigeria celebrated success in the men’s doubles event, as Quadri Aruna and Bode Abiodun combined to impressive effect.

Aruna and Abiodun won their semi-final match in straight games to set up a final against Egypt’s Khalid Assar and Ahmed Saleh.

The duo secured the continental title by winning 6-11, 11-9, 13-11, 9-11, 11-3, 11-6.

Aruna also remains on course to defend his men’s singles title, after avoiding a last-16 exit after losing the opening two games to Egypt’s Mohamed El-Beiali.

Aruna battled back into the match and gradually took control to win 9-11, 11-13, 11-7, 11-6, 11-5, 11-3.

The defending champion lost the opening game 11-8 to Egypt’s Mohamed Shouman in their quarter-final match.

Aruna hit back to win in five games by a score of 8-11, 11-7, 11-8, 11-4, 11-8.

He will face Egyptian opposition for the third consecutive match, with Saleh set to be his opponent in the semi-finals.

Saleh earned a 4-11, 11-8, 11-8, 11-7, 11-8 win over Nigeria’s Abiodun in his quarter-final match.

The second semi-final will see Senegal’s Ibrahima Diaw face two-times champion Omar Assar of Egypt.

Diaw earned a 4-11, 11-4, 11-7, 11-5, 14-12 win over Egypt’s Khalid Assar in the last eight, while Assar battled to a 5-11, 17-15, 11-4, 11-7, 6-11, 9-11, 11-6 win against Nigeria’s Olajide Omotayo.

Egypt is assured of success in the women’s singles competition, with the nation boasting all four semi-finalists.

Defending champion Dina Meshref secured back-to-back straight games victories to reach the last four, with her second coming by an 11-7, 11-6, 11-5, 11-4 score over Tunisia’s Maram Zoghlami in the quarter-finals.

She will now face compatriot Hana Goda, who eliminated 2016 winner Oshonaike in straight games in the last-16.

Goda advanced from the quarter-finals after fellow Egyptian Farah Abdel-Aziz withdrew injured when trailing 11-6, 9-11, 19-17, 6-11, 3-11.

Egypt’s Mariam Alhodaby overcame Nigeria’s Offiong Edem 6-11, 12-10, 11-7, 6-11, 11-3, 11-9 to reach the semi-finals.

She will meet team mate Yousra Helmy, who triumphed 17-15, 11-6, 11-1, 11-9 against Tunisia’s Fadwa Garci.