Colombia’s Farc rebel group has offered to help rebuild a town devastated by landslides that killed at least 254 people.

But their involvement in efforts in Mocoa, in the country’s south-west, has to be approved by the government.

Meanwhile, the search continues for residents who are still missing.

More than 1,000 soldiers and police are involved in the relief works. Most aid is being sent by helicopter as roads are damaged or blocked.