Two railway companies said Monday they will install more security cameras inside the cars of their bullet trains in the wake of the suicide last week that left two dead and 26 others injured.

Central Japan Railway Co. (JR Tokai) and West Japan Railway Co. said in addition to cameras already set up in the rear of each car, they will install more cameras to cover the interiors and aisles at both ends of each car.

The modifications will be made on existing trains within two years from fiscal 2016, which starts next April, and will also be built into new shinkansen, they said.

The move came after Haruo Hayashizaki, 71, set fire to himself inside last Tuesday’s Nozomi 225 shinkansen bound for Shin-Osaka Station from Tokyo Station, filling the train’s cars with smoke, killing a female passenger and leaving 26 others injured.

JR Tokai operates bullet trains between Tokyo and Shin-Osaka stations. JR West provides shinkansen services between Shin-Osaka Station and Hakata Station in Fukuoka, as well as between Joetsu-Myoko Station in Niigata Prefecture and Kanazawa Station in Ishikawa Prefecture.