Japan has called for tighter discipline among US troops after a Marine was arrested on suspicion of murdering a 39-year-old woman at a hotel in Okinawa, raising fresh tensions. Japan is demanding tighter discipline among American troops after a Marine Corps lance corporal was arrested on suspicion of murdering a woman on the southern island of Okinawa, Tokyo’s top government spokesman said. Key points and original sources are listed below.

• Japan has called for tighter discipline among US troops after a Marine was arrested on suspicion of murdering a 39-year-old woman at a hotel in Okinawa, raising fresh tensions.S1

• Japan is demanding tighter discipline among American troops after a Marine Corps lance corporal was arrested on suspicion of murdering a woman on the southern island of Okinawa, Tokyo’s top government spokesman said.S2