thousands of people have given l the yachtswoman ellen macarthur a spectacular homecoming - in the cornish port of falmouth after she smashed the world record . for sailing solo _ around the world, non—stop. this is bbc world news, the latest headlines: pressure mounts on borisjohnson as police review hundreds of photos and documents related to possible downing street parties during lockdown. us officials says russia has delivered a written response to washington's proposals aimed at reducing tensions over ukraine but they did not release any details. earlier, the two countries exchanged bitter accusations over ukraine at a public session of the un security council. the russian ambassador said the us was provoking escalation by falsely accusing moscow of preparing to invade. his american counterpart said russia was trying to create an excuse to attack. russia is demanding that ukraine will never be allowed tojoin nato. the us and its allies have warned of unprecendented sanctions if russia makes a military move