<h1>Teen injured assembling combustible chemicals; father hurt in second blast; probe under Explosive Substances Act examines online radicalisation, supply</h1> A 19-year-old male sustained injuries while assembling combustible chemicals at his home and his father was later injured clearing the materials after a second explosion; police allege the youth had been consuming radicalised online content and procured substances online. Forensic teams, a bomb disposal squad and multiple agencies are investigating; samples and the youth's mobile and financial records have been seized for analysis. A case has been registered under the Explosive Substances Act, and probes will address potential criminal liability for unlawful manufacture/possession of explosives, reckless endangerment, origins of the materials and any international contacts.