The official 's order was questioned in recent days as concern mounted over the situation . Taliban leader Sheikh Abdullah Omar has purportedly released a statement . In the statement , he says fighters are having success infiltrating Afghan forces . The Taliban are known routinely to claim responsibility for attacks and inflate casualty numbers . ` ` Green - on - blue '' attacks have been carried out by Afghans in security uniforms .
The official 's order was questioned in recent days as concern mounted over the situation . Taliban leader Sheikh Abdullah Omar has purportedly released a statement . In the statement , he says fighters are having success infiltrating Afghan forces . ` ` Green - on - blue '' attacks have been carried out by Afghans in security uniforms .