(VOA News) – Gunmen have attacked a Christian church in Indonesia, killing the female minister and wounding four worshippers. The unidentified attackers burst into the Effata church at Palu, the capital of Central Sulawesi province, during an evening service. Police say as many as five men overpowered a security guard and opened fire. Several similar attacks have occurred this year in the same area despite a cease-fire the government negotiated in 2001 in an attempt to end sectarian violence. In Jakarta acting Security Minister Hari Sabarno said the gunmen were trying to renew religious conflict. Since 1999, more than 1,000 people have been killed in violent clashes between Muslims and Christians on Sulawesi island. Indonesia is the world’s most populous Muslim nation, but Christians make up about half of Sulawesi ‘s more than 12 million people.