Creepy Sounds in Saldus

Hi, everyone, I had a creepy experience in Saldus last night.

I was sitting in the kitchen of my apartment last night at 1am with the window open when I heard what sounded like a wailing siren sound from miles away. The direction it was coming from was not densely populated, and it honestly seemed to be coming from the woods. It would repeat itself every three to four minutes.

If I had to describe it, it sounded like a low, mournful wail. Not at all like a ambulance siren or an air raid siren (believe me, I checked) since it didn't sound urgent. Just creepy. The town was silent apart from that.

The sound I found closest to it was the broken tornado siren sound from Chicago (very creepy, its on youtube). It didn't actually sound like that it's the closest sound I could find.

I'm not actually Latvian and I'm just here for my holidays, so sorry this post is not in Latvian but I didn't know where else to ask.

Thank you.

Edit: sorry if I'm slow to respond to messages, I'm packing my bags since I fly home tomorrow so I'm quite busy.