Talks with acquaintances have not yet revealed links to local al Qaeda group . ` According to the questionings carried on today by his classmates and administrative officials of the school , [ Umar ] was a friendly person and did not ring any alarm bells , '' he said . Local Al-Basha group says attempted bombing was in retaliation for airstrikes . Sanaa spokesman says claim unlikely because suspect bought ticket before airstrikes . al Qaeda says Yemen launched strikes but acknowledged Yemen involvement in U.S. .
Talks with acquaintances have not yet revealed links to local al Qaeda group . Local Al-Basha group says attempted bombing was in retaliation for airstrikes . Sanaa spokesman says claim unlikely because suspect bought ticket before airstrikes . al Qaeda says Yemen launched strikes but acknowledged Yemen involvement in U.S. .