The middle-aged man doused himself in what appeared to be petrol before setting himself alight outside the main train station in Shinjuku, one of Tokyo's busiest shopping and entertainment districts, the Metropolitan Police Department said.
The man was taken to hospital with burns and his condition was not immediately known, police added, without giving further details.
Such incidents are extremely rare in Japan.
The Jiji Press news agency reported that the man, presumed to be in his 50s or 60s, climbed the frame of a pedestrian bridge and spoke through a megaphone for about an hour against Abe's drive to expand the use of Japan's military.
The premier is pushing to reinterpret Japan's strict pacifist constitution to allow its well-equipped armed forces to fight in defence of an ally, something currently prohibited.
Social networks were abuzz with reports and photos about the fire which happened in front of several passers-by.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
