Shortly after midnight Saturday, The Times of Israel reported that at least two people sustained serious injuries when a bus came under fire near the Wailing Wall.
"Update to the terror attack in the Old City in Jerusalem: There are two scenes, including a bus. MDA EMTs [emergency medical technicians] and Paramedics are treating and conveying 7 patients to hospital, 2 in serious condition and 5 in mild to moderate condition," MDA Spokesperson Zaki Heller said on social media.
Earlier, MDA said in its initial report on the attack that two patients in serious condition were getting treated by paramedics.
"At 01:24 [22:24 GMT on Saturday] a report of a shooting was received in MDA's 101 Jerusalem Region emergency dispatch center of a shooting towards a bus... EMTs and Paramedics are treating 2 patients in serious condition," Zaki Heller said.
According to the Jerusalem police, the attacker surrendered and has been arrested.
"Update on the shooting in the Old City of Jerusalem: police, MDA and Shin Bet officers took part in searching for the suspected shooter, the terrorist who carried out the attack was arrested after he surrendered, and his weapon was seized," the police said.