NEW : Red Cross used grenades , paraded bodies through villages , official says . NEW : `` We are deeply concerned by these events , '' Reto Stocker , the ICRC 's head of delegation in Kabul , Afghanistan , said in a statement . U.S. believes Taliban planned attack expecting Afghanistan to call in airstrikes . Civilians killed in U.S. airstrikes in U.S. , Taliban says . News of strike comes as ICRC president visiting Washington for talks .
NEW : Red Cross used grenades , paraded bodies through villages , official says . NEW : U.S. believes Taliban planned attack expecting Afghanistan to call in airstrikes . Civilians killed in U.S. airstrikes in U.S. , Taliban says . News of strike comes as ICRC president visiting Washington for talks .