Police in Katsina state has arrested 40 suspected Yandaba, also known as Kauraye, in connection with last Fridays' attack in Sabuwar Kasuwa quarters in the state metropolis. The attack left about 10 persons critically injured.Police in Katsina state has arrested 40 suspected Yandaba, also known as Kauraye, in connection with last Fridays' attack in Sabuwar Kasuwa quarters in the state metropolis. The attack left about 10 persons critically injured.