TOKYO (AP) -- Tokyo Electric Power Co. says three workers have been injured and seven are missing after an explosion at the stricken Fukushima Dai-ichi nuclear plant.
Japan's chief cabinet secretary says a hydrogen explosion occurred Monday at the facility's Unit 3. The blast was similar to an earlier one at a different unit at the facility.
Yukio Edano says people within a 12-mile (20-kilometer) radius were ordered inside following the blast. AP journalists felt the explosion 25 miles (40 kilometers) away.
Edano says the reactor's inner containment vessel holding nuclear rods is intact, allaying some fears of the risk to the environment and public.
More than 180,000 people have evacuated the area in recent days.
TOKYO (AP) -- Japan's central bank says it is injecting a record 15 trillion yen ($183.8 billion) into money markets to stabilize the financial system after a devastating earthquake and tsunami.
The figure is more than double the 7 trillion yen the Bank of Japan had announced earlier in the day.
The emergency move comes as the Tokyo stock market plunges nearly 6 percent, and worries grew about the economic impact of Friday's earthquake and tsunami.
Central bankers are currently gathered for a one-day policy board meeting.
(10:45 p.m. Sunay) SOMA, Japan (AP) - Soldiers and officials in northeastern Japan are warning residents that the area could be hit by another tsunami and are ordering residents to higher ground.
Sirens around the town of Soma went off late Monday morning and public address systems ordered residents to higher ground.
Kyodo News Agency said the tsunami could be 10 feet (3 meters) high, citing Fukushima prefectural officials.
An Associated Press reporter stood about 100 yards (100 meters) from the coast.
The area was hit by a massive quake and tsunami on Friday.