the clean—up from this disaster by themselves. meanwhile, on the other side of the pacific in peru, another clean—up is under way. the crude oil on these beaches was spilled from a tanker that was unloading when a tsunami hit the coast here, triggered by the eruption in tonga more than 10,000 kilometres away. rupert wingfield—hayes, bbc news, in tokyo. let's get some of the day's other news. in britain, downing street is facing further criticism about the way it operates amid allegations that a number of backbench mps have faced intimidation that could amount to blackmail. the prime minister, borisjohnson, has insisted he has seen no evidence to support the allegations, and has advised colleagues who feel threatened to go to the police. the united states has charged four government officials from belarus with aircraft piracy over the diversion of a passenger plane in order to arrest a journalist. the incident took place last may when a ryanair plane travelling from greece to latvia was forced to divert to minsk after the belarusian authorities said there was a suspected bomb threat.