TOKYO - Japan's national broadcaster NHK reports that 15 people were killed and 45 injured in a knife attack Tuesday at a facility for the handicapped in Sagamihara, just outside Tokyo.

The report said police have arrested a knife-wielding man after he turned himself in.

Japanese media said staff called police at 2:30 a.m. local time with reports of a man armed with a knife on the grounds of the Tsukui Yamayuri Garden facility, Reuters reported.

NHK said the suspect, 26, is a former employee at the facility, Tsukui Yamayuri-en, on suspicion of attempted murder.

Television footage showed a number of ambulances parked outside the facility, with medics and other rescue workers running in and out.

Kyodo News agency reported that 19 people are dead and 20 injured, including those in a condition of heart and lung failures.

This is a developing story and will be updated when more information is available.

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