propaganda
for the Farc rebel group in the wreckage of their flat. A fourth student and several neighbours were injured by the explosion.
People in Senegal have gone to the polls in a run-off vote to decide if the current President Abdoulaye Wade will win a controversial third term. He's facing his former Prime Minister Macky Sall, who has the backing of all the defeated opposition candidates. Thomas Fessy reports from Dakar.
This run-off vote very much felt like a referendum with voters either for or against the incumbent President Abdoulaye Wade. His candidacy for a third term sparked weeks of unrest earlier this year. Candidates who were defeated in the first round last month have all backed Macky Sall, joining an "anyone but Wade" coalition. But both candidates have said they couldn't
envisage
defeat, prompting fears of renewed violence if the results are disputed when they start to come in.
The Hollywood film director James Cameron has begun a descent to the bottom of the world's deepest ocean
trench
in the western Pacific. Mr Cameron, who directed the film Titanic, is making the 11km dive in a specially designed submarine to explore and film the floor of the Mariana Trench. If he succeeds, it'll be only the second manned expedition ever to go there and the first for half a century. Mr Cameron will have to spend 10 hours curled up like a foetus in a tiny
submersible
, the Deepsea Challenger.