At least 42 Yemeni soldiers have been killed and 81 wounded in over a week of sporadic clashes with Shiite Muslim rebels in the north of the country, a Yemeni official has said. The official said the casualty toll had been cited in a report presented by Yemen's national security chief, Ali al-Ansi, to the country's consultative council. Yemeni government forces have clashed with rebels officials say are led by Abdul-Malik al-Houthi, son of Sheikh Badr el-Deen al-Houthi and brother of anti-American cleric Hussein al-Houthi who was killed in 2004. Yemen has accused the rebels of wanting to install Shiite religious rule in the country and preaching violence against the United States. Yemeni President Ali Abdullah Saleh warned the rebels after the latest bout of violence, which began late last month, to surrender their weapons or face a showdown.