Several Yemeni schools suspected of promoting Muslim extremism have been shut down by the government, the government said Tuesday. The ruling General People's Congress Party said on its Web site the literacy teaching centers that refused to reveal information about curricula, the numbers of teachers and students and sources of financing were closed down. The head of the program to combat illiteracy in the region of Sanaa said three centers were closed in that area because they were manipulated by political parties and did not respect the laws and regulations. Yemeni Prime Minister Abdel Kader Bajamal has warned manipulating schools "will backlash on the country and its people." Last March, the government closed down hundreds of centers that taught religion on charges they illegally operated and promoted Muslim extremism.