Firefighters put in a "quacking effort" to rescue a flock of ducklings who were trapped behind a metal grille in west London.
The London Fire Brigade said that they were called to the scene on Rainville Road in Hammersmith at 11:45am on Tuesday.
The group of ducklings had fallen from a roof building into an underground car park along the river front, the brigade said.
They had then become trapped inside a ventilation system behind a metal grille.
But firefighters used an electric cutter and saw to remove sections of the grille to gain access.
After catching the ducklings by hand and placing them inside a box, the fire crew then reunited the chicks with their mother.
With the help of the RSPCA, the ducklings were checked over before they swam away down the River Thames.
Firefighter Malena Orlando, who was at the scene said: "We were called to assist the RSPCA with some ducklings that were trapped behind a wall.
"We arrived and were told that some ducklings had fallen from a roof into the car park ventilation system and were trapped in two separate parts of the void.
"We pitched a short extension ladder to either side of the large ventilation grilles and using an electric cutter and saw, we removed the two sections of the grilles to gain access.
"I then climbed inside the void, catching the ducklings by the hand and placing them into a box. The chicks were then reunited with their mother and after being checked over they swam away down the river.
“We love animals and are always happy to assist if our specialist equipment is required, as in this case. We would always encourage people to call the RSPCA in the first instance if they see an animal stuck or in distress."
In a tweet, the LBF wrote: "A quacking effort from our firefighters who rescued some ducklings who fell from a roof into a ventilation system in Hammersmith."
The incident was over for firefighters by 12.52pm. Fire crews from Paddington fire station attended the scene.
