The 10 most important things in the world right now
1. At least 24 people are dead and hundreds more injured after two passenger trains in India derailed within minutes of each other while travelling in opposite directions over a partially flooded bridge.
2. A washed-up plane part found on the French Indian Ocean island of La Reunion last week and believed to belong to missing flight MH370, will be examined by experts for the first time on Wednesday.
3. The mother of Sandra Bland, the black woman found dead in a Texas jail three days after a confrontation with a white state trooper, filed a lawsuit against the officer who arrested her.
4. One of the world's greatest free divers, 53-year-old Natalia Molchanova of Russia, is believed to be dead after she failed to surface from a dive in the Mediterranean on Sunday.
5. Russia submitted to the United Nations claims to 1.2 million square kilometers (over 463,000 square miles) of the Arctic, parts of which are believed to hold vast amounts of undiscovered oil and gas.
6. The World Health Organisation said the number of new Ebola cases in Sierra Leone and Guinea reached its lowest point in over a year last week, with no new cases reported in Liberia.
7. Top German federal prosecutor Harald Range was fired over his decision to open a treason investigation against two journalists for publishing documents about the domestic spy agency's plans to expand surveillance of online communication.
8. Britain is extending its Iraqi air campaign against ISIS militants until March 17, one year longer that initially planned.
9. Theo Bronkhorst, the professional Zimbabwean hunter who led the expedition that killed Cecil the lion, is due to stand trial Wednesday on charges of organising an illegal hunt.
10. The CEO of World Rowing has demanded that the venue for next year's Rio Olympics be tested for viruses after a report that the waters are polluted with human waste and sewage.
And finally ...