Swedish police say they have arrested a 16-year-old boy for illegal weapon possession after receiving a tip about a suspicious clip he had posted on YouTube, reported ap. Police spokesman Borje Stromberg says the teen was arrested in Koping, central Sweden, late Wednesday for alleged illegal weapon possession and for «creating danger to others.» He says police raided the boy's home after seeing the YouTube clip, but couldn't immediately confirm the content of the clip. The arrest comes only two days after 22-year-old Matti Saari killed 10 people and himself at a school in Kauhajoki, western Finland. Police in Finland had questioned Saari before the shootings about YouTube clips that showed him firing a handgun, but released him.