抢劫过程仅30秒！香港10亿日元大劫案最新通报：已拘捕15人，年龄约20至69岁间，部分人有黑社会背景

Group 1 - A robbery occurred in Hong Kong on December 18, where four armed assailants stole approximately 1 billion Japanese yen (around 45 million RMB) from two employees of a Japanese company involved in cryptocurrency and luxury goods [2][3][4] - The police have arrested 15 individuals, some of whom have ties to organized crime, and 7 of them have been formally charged with conspiracy to commit robbery [6][7] - The robbery was executed in a highly organized manner, taking only about 30 seconds to complete, indicating careful planning and coordination among the assailants [6][7][8] Group 2 - The assailants used a vehicle to escape the scene and quickly transferred the stolen cash to a second getaway vehicle, demonstrating a high level of teamwork and efficiency [6][7] - Evidence collected at the scene included a knife believed to have been used in the robbery, masks, and drink bottles, while the stolen cash has not yet been recovered [8] - The police are actively pursuing the whereabouts of the stolen money and do not rule out the possibility of further arrests in the coming days [8]