NEW : The suspected drone strike hits a vehicle and two people in Pakistan 's South Punjab . A fifth missile struck a vehicle being driven by a suspected militant near the village of Shawal , the officials said . The U.S. does not comment on suspected drone strikes . Monday 's attack brings to question the number of drone strikes reported this year . The US believes terrorists are crossing into Afghanistan from the region .
NEW : The suspected drone strike hits a vehicle and two people in Pakistan 's South Punjab . The U.S. does not comment on suspected drone strikes . Monday 's attack brings to question the number of drone strikes reported this year . The US believes terrorists are crossing into Afghanistan from the region .