NEW : 3 security officers killed in recent protests , official news agency reports . Comment: Saleh is a member of the Hashid tribe . President Ali Abdullah Saleh has called for a coalition government to end protests . Opposition groups are calling for demonstrations against Saleh 's rule on Tuesday .
NEW : 3 security officers killed in recent protests , official news agency reports . Comment: President Ali Abdullah Saleh has called for a coalition government to end protests . Opposition groups are calling for demonstrations against Saleh 's rule on Tuesday .