BBC News 5 October 2022 - by the Visual Journalism Team
Ukrainian forces have taken back more territory following Russia's annexation of Ukraine's four regions.
Here are the latest developments:
Ukrainian breakthrough in the south
Ukrainian troops have broken through Russia's defences on the west bank of the Dnieper River in Kherson.
On Tuesday, reports suggested that they had advanced about 30km (20 miles) and were approaching the village of Dudchany.
Ukraine has been attacking Russian positions in Kherson in recent weeks, targeting Russian transportation and logistics facilities in the area.
They have also attacked bridges, ferries and pontoons, attempting to make Russian positions on the west side of the river unsustainable, and thereby force a withdrawal.
Also in the south, the International Atomic Energy Agency (IAEA) has called for the demilitarisation of the Zaporizhzhia nuclear power plant.
Russian and Ukrainian sources have accused each other of shelling close to the plant, which is Europe's biggest nuclear facility.
On Monday, Russia released the director of the plant, Ihor Murashov.
He was detained on Friday and it is understood that he will not be allowed to return to the facility.
Russia's military took over the power station in early March, but it is still being operated by Ukrainian staff.
Intense fighting in the east
Ukrainian troops took control of the key logistical hub of Lyman in Donetsk on Saturday.
They are now pushing further east towards the region of Luhansk.
The Institute for the Study of War (ISW) says they have "made substantial gains" in the area.
Russian reports suggests their next target may be the city of Kreminna.
Analysts say the loss of Lyman is a major set-back for Russia.
Russian forces have been trying to push forward in Bakhmut, but reports suggest they have been repelled by Ukrainian troops.
The latest fighting follows a major Russian defeat in the east.
Ukraine says it recaptured 6,000 sq km (2,317 sq miles) of territory from Russia in early September, when it forced back Russian units in the Kharkiv region.
Russian troops withdrew from the key towns of Izyum and Kupiansk, saying that the retreat would allow its troops to "regroup".
Both towns were major logistical hubs for Russian forces in Donbas.
Annexation of four regions
Four regions of Ukraine, that are partially or almost completely occupied by Russia are being annexed by the Russian Federation.
It follows self-styled referendums in Donetsk, Luhansk, Kherson and Zaporizhzhia, held between 23 and 27 September.
President Vladimir Putin has said that Russia will use "all the forces and resources" it has to "liberate" the four regions.
In an address to the Russian people, Mr Putin said his country had "various weapons of destruction", adding: "I'm not bluffing."
The annexations follow a "partial mobilisation" of about 300,000 Russian reservists.
Mr Putin has acknowledged mistakes in the call-up process, with some people who should not have been called up being sent to Ukraine.
According to the UK Ministry of Defence (MoD), this number could be further bolstered by another 120,000 as part of the routine autumn conscription cycle, set to begin on 1 November.
Russia invaded Ukraine on 24 February, but Ukrainian forces retook large areas around Kyiv in early April after Russia abandoned its push towards the capital.
Areas in the west of the country, including Lviv, have seen missile attacks but no attempt by Russian forces to take and occupy ground.
The Russians have suffered heavy losses since the invasion began and significant quantities of Russian weaponry have also been destroyed or captured.
By David Brown, Bella Hurrell, Dominic Bailey, Mike Hills, Lucy Rodgers, Paul Sargeant, Alison Trowsdale, Tural Ahmedzade, Mark Bryson, Zoe Bartholomew, Sean Willmott, Sana Dionysiou, Joy Roxas, Gerry Fletcher, Jana Tauschinsk, Debie Loizou, Simon Martin and Prina Shah.
About these maps
To indicate which parts of Ukraine are under control by Russian troops we are using daily assessments published by the Institute for the Study of War with the American Enterprise Institute's Critical Threats Project.
To show key areas where advances are taking place we are also using daily updates from the UK Ministry of Defence and BBC research.
The situation in Ukraine is fast moving and it is likely there will be times when there have been changes not reflected in the maps.
