BAGHDAD, August 29 (SPA) - A suicide bomber killed at leastfour people and wounded six in an attack at a police stationnorth of Baghdad on Saturday, Iraqi police said. The attack occurred at about 8 a.m. (0500 GMT) near the townof Shirqat, 300 km (190 miles) north of Baghdad, in Salahuddinprovince, Reuters reported.--SPA www.spa.gov.sa/696200