The President of the Senate, Dr Bukola Saraki, has administered the oath of office on Lawal Gumau (APC- Bauchi South) and Ahmed Babba-Kaita (APC- Katsina North) as senators of the Federal Republic of Nigeria.
The senators were sworn in during plenary on Wednesday.
Gumau emerged winner of the Bauchi South Senatorial election held on August 11.
Gumau, who was a member of the House of Representatives, replaced late Senator Ali Wakili, who died on March 17.
Meanwhile, Babba-Kaita who was declared winner of the Katsina North Senatorial election, replaced Senator Mustapha Bukar, who died on April 4.