Hours after the deadly bombing in General Santos City that killed at least six people and injured 20 others, another blast rocked Kidapawan City in Cotabato, southern Philippines, local media reported Wednesday night.

Two people were injured in the second blast that occurred at 8: 45 p.m., said a report by GMA news network.

No details were available as of posting time.

The first explosion took place at 6:10 p.m. at a lotto outlet in General Santos City. The area was reportedly crowded when the blast occurred.

Bomb experts of the General Santos Police are still investigating the incident.

Chief Superintendent German Doria said police also were looking into the possibility that the blast stemmed from the failure of the lottery outlet operator to pay winners of a lottery draw.

"This Lotto outlet closed three days ago because many bettors won ... then all of a sudden an explosion occurred in front of the Lotto outlet," Doria said.

Source: Xinhua