( CNN ) -- Eighteen people , including two soldiers , were killed Saturday in a gunbattle between the Mexican army and organized-crime suspects in the Mexican resort town of Acapulco , the Mexican Ministry of Defense said Sunday . Mexican soldiers hold rifles Saturday during a clash with organized-crime suspects in Acapulco . The incident began about 7 p.m. , when the soldiers went to a location called Avenida Rancho Grande in Acapulco `` to exploit information obtained through an anonymous tip , '' the ministry said in a statement . The soldiers were met by gunfire , it said . Five people were arrested in connection with the shootout . Two soldiers and 16 gunmen were killed , and nine soldiers were wounded , the statement said . The gunmen were not identified , but the statement called them `` members of organized crime . '' Authorities seized 36 large-caliber weapons , 13 small-caliber weapons , two grenade launchers , 13 fragmentation grenades , 3,525 rounds of various caliber ammunition , 180 charges and eight vehicles , the ministry said . CNN 's Arthur Brice and CNN en Español 's Luisa Calad contributed to this report .
Mexican soldiers , organized-crime suspects fight in Acapulco , authorities say . Two soldiers , 16 `` members of organized crime '' killed ; nine other soldiers wounded . Five people arrested in connection with shootout ; authorities seize weapons . Soldiers were investigating anonymous tip , says Mexican Defense Ministry .