MALACAÑANG on Tuesday, September 10, raised concern over another attack by an alleged suicide bomber on a military detachment in Sulu.

Presidential Spokesperson Salvador Panelo was hopeful that the defense capabilities of the state forces would improve to avoid a repeat of similar incident in the future.

"It's a matter of concern, of course," Panelo told Palace reporters, reacting to the suspected suicide bombing that once again rocked Indanan town in Sulu.

"Anything that will show a rise in terrorism in any area of this country is always a matter of concern and we hope our security will improve more on their devices to stop this," he added.

On Sunday, September 8, a foreign-looking woman bombed an area near a military checkpoint in Indanan, Sulu. No civilian or soldier was hurt in the explosion.

The military confirmed that the alleged suicide bomber who attacked Sulu was a caucasian woman.

The blast in Sulu was the third case of suicide bombing in the country this year.

On June 28, twin explosions rocked Indanan, Sulu, killing eight people, including three soldiers.

One of the two alleged suicide bombers was a Filipino, the first in the country.

A couple of suspected suicide bombers also bombed the Jolo Cathedral in January, killing more than 20 civilians and uniformed men. (SunStar Philippines)