Manila, Feb. 27 -- Malacanang is set to heighten security measures following the arrest of alleged Chinese spies supposedly involved in surveillance activities targeting the presidential palace, the military, and the police.

In a press briefing Thursday, Presidential Communications Undersecretary and Palace Press Officer Claire Castro described the arrest as "alarming," emphasizing the need to intensify efforts to address the issue of foreign espionage.

"Nakakaalarma po talaga iyang balita na iyan, at pagpupursigihin pa po natin at paiigtingin po natin ang ating puwersa para po masugpo ang mga sinasabi at napagbibintangang spies (That news is really alarming, and we will continue and intensify our force to address the alleged spies)," C...