NEW : Obama authorizes reconaissance flights over Syria , U.S. official says . Comment: But he warns against any unilateral action in Syrian territory without permission . Syrian state media reports that regime forces evacuated the base to regroup .
NEW : Obama authorizes reconaissance flights over Syria , U.S. official says . Syria 's foreign minister says his country is ready to accept support from the U.S. and others . But he warns against any unilateral action in Syrian territory without permission . Syrian state media reports that regime forces evacuated the base to regroup .