Five Australians MPs are trapped on a bullet train that ground to a halt following the 8.9 magnitude earthquake in Japan.
The federal Liberal member for Fadden, Stuart Robert said he and four other MPs were on the train when the earthquake hit on Friday.
Mr Robert said he was with Labor MPs Stephen Jones and Amanda Rishworth, Liberal Senator Michaelia Cash and Victorian Labor MP Natalie Hutchins.
He said the group was travelling on the bullet train from Kyoto and Osaka in the south when the quake hit.
The train has stopped about 200km outside Tokyo.
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"When it hit the train shook," he told Fairfax Radio.
"We then found out that the power station that supplies the power shut down."
He said millions of Japanese commuters would be stranded on trains throughout the country, including in the capital Tokyo.
"Obviously, food and water on board trains will be an issue. There's none on board this train," he said.
Commuters were surveying the devastation and watching footage of the disaster on their mobile phones, laptops and iPads, he said.
Mr Roberts later tweeted: "Approaching four hours stuck on the bullet train, another train stuck beside us, at least lights are still on, people very calm around us."
He said the group were in Japan on a leadership exchange program.
