Which Zaire region is home to the country's deepest lake's Name it and list its depth.
SELECT T3.Name, T1.Name, T1.Depth FROM lake AS T1 INNER JOIN located AS T2 ON T1.Name = T2.Lake INNER JOIN province AS T3 ON T3.Name = T2.Province INNER JOIN country AS T4 ON T4.Code = T3.Country WHERE T4.Name = 'Zaire'