Workers have been evacuated from a Japanese nuclear power plant after an 8.7 magnitude earthquake off the far east coast of Russia triggered tsunami warnings.
Alerts have been issued across the Pacific, with evacuation orders issued in Japan, Canada and the US after the earthquake hit the Kamchatka peninsula in Russia.
In Japan, around 4,000 workers are taking shelter on higher ground after the Fukushima Daiichi nuclear power plant was evacuated.
Staff continue to monitor the safety of the plant remotely.
The site's usual release of treated radioactive wastewater into the sea has also been temporarily suspended as a precautionary step.
