NEW : Mexico agency sends investigative team to help . Calderon has unleashed federal police and soldiers in several states across Mexico and tightened controls on money laundering and corruption among local and municipal police forces , which have been infiltrated by drug traffickers . Death toll in Mourino plane crash rises to two , report says . U.S. 's interior minister and two high-ranking officials among those killed . Interior minister is country 's second most-powerful post .
NEW : Mexico agency sends investigative team to help . Death toll in Mourino plane crash rises to two , report says . U.S. 's interior minister and two high-ranking officials among those killed . Interior minister is country 's second most-powerful post .