Mobile brigade police patrol around the Surabaya police headquarters following a suicide attack in Surabaya on May 14, 2018. Two militants on a motorcycle blew themselves up at a police headquarters in Indonesia's second city Surabaya on May 14, wounding at least 10 people including officers, authorities said, a day after a deadly wave of suicide bombings hit churches. Pic/AFP

Two bike-borne militants blew themselves up at an Indonesian police headquarters in Surabaya city on Monday claiming at least one personnel, media reports said. The attack at the Surabaya Police headquarters came just a few hours after a bomb prematurely went off in Sidoarjo, East Java, late on Sunday and bomb attacks on three churches in the city earlier in the day.