Weird bugs in the bathroom and bathtub

Hi,
over the past few weeks we have found some of these in the bathroom. started off with one and then have got worse, six in the bathtub last night. Any idea what they are and how to get rid of them? UK based.

Thanks.

 

I don't know what they are specifically, but it is a beetle of some type. I doubt that they are related to a moisture problem as are other insects, but they may be a "stored product pest" such as what would infest grain, cereals, bird/rodent nests, dead birds/rodents, old rodent bait, pet food, etc. The fact that you find multiple beetles is what leads me to think this. Check bathroom vents/fans, ceiling fixtures, and other ceiling penetrations.

Is there an attic above this bathroom? If so, can you access it? If so, that is a place that I would definitely look. May need a pole or rake to move insulation, etc.

If these are stored product pests, then finding and eliminating the source will be the most important control effort.