Vehicle manufacturer officials on Monday voiced concerns about possible effects of suspended operations at tyre maker Bridgestone Corp.'s plant in Kuroiso, Tochigi Prefecture, which caught fire earlier in the day, Dow Jones reported, citing the Kyodo news agency. An official at Toyota, which gets tyres for the Hiace and two other commercial vehicle models from the plant, said manufacturing operations may be affected, as it has only several days' worth of tyres in stock, the report noted.