SIMFEROPOL, Ukraine, Oct 26 (Reuters) - SNIPPET: "Yuri Lutsenko said the men, Ukrainian citizens from the southern Crimean peninsula, were suspected of belonging to al-Takfir wal-Hijra, which originated in Egypt and is linked with activities in North Africa. Lutsenko said explosive materials, detonators, a Kalashnikov rifle and cartridges, firearms instruction manuals, and propaganda material propagating extreme Islam were found in seven places. Pamphlets also linked the men to Hizb-ut-Tahrir, a group that has said it wants to establish a global Islamic caliphate by peaceful means and is well known in Central Asia. "A network of the extreme Islamic movement al-Takfir...