Civilian casualties

The mayor of the southern Afghanistan city of Kandahar has been killed by a suicide bomber – the latest in a string of attacks on influential officials in the country.

Police in Northern Ireland arrest five men for questioning about the murder of Catholic police officer Ronan Kerr, who was killed by a car bomb in Omagh last April.

Norway gunman Anders Behring Breivik has admitted carrying out Friday’s shootings and Oslo bomb but denies criminal responsibility. The 32-year-old has also claimed there are two more terror cells.

Nurse Rebecca Leighton has been charged in connection with the deaths of five patients at a Stockport hospital at the centre of a tampering inquiry

The US gives $28 million in aid but says the money won’t be used in rebel-held famine regions, unless it receives assurances from militants. Channel 4 News talks to the head of the UN in Somalia.

Defence Secretary Liam Fox apologises to the families of the Chinook pilots blamed for the Mull of Kintyre helicopter crash 17 years ago. Alex Thomson gets reaction from the pilots’ relatives.

Syria accuses the US of “interfering” in its affairs by sending its ambassador to the restive city of Hama following a security crackdown by al-Assad’s regime.

The hard-line Somali armed group al-Shabaab welcomes “Muslim and non-Muslim” foreign aid groups as the region suffers one of its worst droughts in 60 years.

The head of the UN in Somalia exclusively tells Channel 4 News he is “not sure the population can survive until the end of the year” unless urgent action is taken, amid the worst drought in 20 years.

Amnesty International says it has evidence that Syrian forces may have committed crimes against humanity when they crushed protests in the western town of Tel Kelakh in May.

After threatening to boycott his UN war crimes tribunal, the former Serb army chief, Ratko Mladic, turns up – only to be removed from the courtroom after arguing with the judge.

As Syrian forces mass ever nearer to the Turkish border forcing ‘more than a thousand’ refugees to flee north, a witness tells Channel 4 News Assad’s forces are now blocking routes to the border.

Nato’s Secretary General Anders Fogh Rasmussen tells Channel 4 News he regrets the “tragic loss of life” following an off-target air strike in Tripoli, but says the mission is meeting its objectives.

David Cameron calls for an investigation into Sri Lanka allegations as the FCO says “convincing evidence of violations of human rights” were aired in the Channel 4 documentary Killing Fields.

A fleeing refugee tells Channel 4 News of “total genocide” and sexual violence allegedly committed by Syrian soldiers in and around the besieged city of Jisr al-Shughour.