<sod >A suicide bomber rammed his vehicle into an Egyptian security checkpoint outside a police building in northern Sinai - killing at least 10 people and wounding 22, officials have said.< eod>< sod > A suicide bomber rammed his vehicle into an Egyptian security checkpoint outside a police building in northern Sinai on Monday morning ÃÂ¢ÃÂÃÂÃÂÃÂ killing at least 10 people and wounding 22, officials have said.< eod>