Tokyo: Police arrested two men Wednesday in a high-profile robbery and murder case in Komae, Tokyo, last month, investigative sources said.

The case has drawn public attention because it may be part of the series of robberies in Japan in which key figures are believed to have given instructions to perpetrators from the Philippines.

Tokyo’s Metropolitan Police Department arrested the two men from Saitama Prefecture, north of Tokyo, suspecting their involvement in the case, in which Kinuyo Oshio, 90, was killed in her house.

The police also suspect the involvement of three other people. Arrest warrants are expected to be served on two of them later Wednesday.

Of the two arrested, Hiroyuki Nomura, 52, is suspected of killing Oshio on Jan. 19, when she was alone in the house, and stealing three luxury watches and a diamond ring, worth some 600,000 yen in total.

The other suspect, Shogo Fukushima, 34, is believed to have supported him by renting two cars used to escape from the scene.

The two men emerged as suspects after police examined blood-tainted gloves and a mobile phone, both found in one of the cars, and security camera footage.

In the Komae case, a person who went by the name “Kimu” is believed to have given instructions from the Philippines using the highly confidential Telegram messaging app.

Around 5:20 p.m. Jan. 19, Oshio was found dead in the basement corridor of her house, with her wrists tied.

She was apparently killed around noon that day. Four types of footprints likely left by perpetrators were found in the house.

JIJI Press