A homemade bomb detonated near the entrance of the Philippine justice ministry in Manila early Monday, officials confirmed.
The explosion occurred hours before authorities discovered a suspected unexploded device near the country's Senate building, heightening security concerns ahead of a scheduled speech by President Ferdinand Marcos Jr.
The incidents have triggered a significant security response in the capital.
Law enforcement and government officials are coordinating to secure the premises and investigate the devices.
The proximity of the blasts to key government institutions underscores the vulnerability of high-profile targets in Manila.
The attacks come against a backdrop of heightened global security risks.
Recent disruptions in Red Sea shipping due to Houthi attacks have already strained global supply chains and energy markets.