At least six people were killed and 22 injured when a suicide bomber struck near a venue where Afghan elites will debate a security pact with the US next week.

At least six people were killed and 22 injured when a suicide bomber struck near a venue where Afghan elites will debate a security pact with the US next week, the interior ministry said.

"Initial information shows that unfortunately four civilians, one police and one soldier have been killed in today's attack, 22 more, majority of them civilians, have been injured," spokesman for Afghan interior ministry Sediq Sediqqi told media oulets, adding that the toll may rise.