BBC analysis editor Ros Atkins looks at why tensions have been running so high in the city - and how we got here.

The storm toppled trees, damaged homes and left more than 800,000 people without power.

State ariline Satena says its aircraft carrying 13 passengers and two crew "suffered a fatal accident".

The storm toppled trees, damaged homes and left more than 800,000 people without power.

Contact with the aircraft was lost just minutes before it was due to land in northern Colombia, state airline Satena says.

The US Secretary of State remained robustly on message when asked about the legality of Maduro's removal, plans for oil sales, and the future of Venezuela.

The country cut off internet access on 8 January following a government crackdown on protesters.

The country cut off internet access on 8 January following a government crackdown on protesters.

Officials searched offices in Frankfurt and Berlin in relation to "past business relationships".

Wounded demonstrators tell the BBC they are relying on medics willing to risk their own safety by treating them at their homes.

The BBC speaks to a person who was aboard a train on which five people died after it was targeted by drones.

Five people died in the attack in northeastern Ukraine when three drones targeted the train.