A couple have been charged after four children were found in an 'unlivable' home with thousands of cockroaches and hundreds of spiders.

Eugene Bergener, 50, and Moranda Young, 32, were arrested after authorities found the infestation, which police claim was the worst they had ever seen, KIVITV reported.

Officers were carrying out a welfare check when they first noticed a 'very pungent' urine odor from the property in Nampa, Idaho.

Inside they claim to have seen 'thousands of cockroaches' that fell on officers' heads, crawled over couches and in some rooms lined the floors up to the ceilings.

Cobwebs were found in 'every corner and wall' of the home, which they estimated could contain hundreds of spiders feasting on the bugs.

Eugene Bergener (left), 50, and Moranda Young (right), 32, of Nampa, Idaho, have each been charged with four misdemeanor counts of injury to a child

The couple lived at 400 block of North Bailey Ave, in Nampa, Idaho, where police claim to have found thousands of cockroaches and hundreds of spiders

The four girls aged between one and 13-years-old were taken into temporary care. Their relationship to the couple has not been revealed.

Officer Matt Richardson said: 'In my years of law enforcement experience, I have never seen a house [infested] to this extent.

'The house is unlivable for children, let alone any person.'

Officers found roaches crawling over cereal and dirty dishes, KIVITV reported, and one table was stacked up to six foot high with items.

They claimed they saw dirty laundry stacked two feet high in a bathtub and around 100 cigarette butts piled on a table.

The smell of urine in the property, which the couple shared with pets, was so strong it was 'burning' the nose of one of the officers.

The bug infestation was initially noticed by officers after they peeked in through the window of the home and spotted them crawling on the couches.

Once inside 400 block of North Bailey Avenue they were shocked by what they found.

Richardson said: 'The amount of cockroaches in the house has to be into the thousands and possibly hundreds of spiders inside the residence, feasting on the cockroaches.

'In one corner of the living room, there were cockroaches lined all the way from the floor to the ceiling, and spider webs.

'While Officer Burgoyne and myself were standing inside the residence, cockroaches were falling on our heads.'

Young (right) allegedly told investigators that the landlord had tried to bug bomb the property in Nampa, Idaho, in a bid to reduce their infestation

The couple revealed that Young (left) and the three youngest children shared a bed, while the oldest girl, 13, slept on the floor with the bugs. Bergener (right) claimed that he slept on a sofa in the property

The girls, who are aged one, three, four and thirteen, are in the care of Idaho Health and Welfare department, KIVITV reported.

After questioning, it was allegedly revealed that Young shared the bed with the three youngest children meanwhile the oldest slept 'on the floor with the cockroaches.'

Bergener is claimed to have told investigators that he slept on the couch.

Young said that the landlord had tried to bug bomb the location in a bid to reduce the infestation, KIVITV wrote.

Since their arrest the couple have each been charged with four misdemeanor counts of injury to a child.

They have both pleaded not guilty to the counts and have been booked into Canyon County Jail.

Bergener has been scheduled for a pre-trial conference on September 16 and Young's has been arranged for October 28.

She has also been instructed not to have any contact with the children.