Still hearing raiders after raid expired

I was doing a raid and I ran out of time, but I'm still hearing raiders around as if they did not give up and leave. This is definitely not just a patrol. I started the raid like normal by getting the bad omen effect then going to a village. I completed wave one easily but then on wave two I could not find them. I went into a small cave/ditch area and started hearing them, so I thought they would be there. I looked for what would seem like 5-10 minutes, but still only heard them and never found them. A minute or so later, a message appears on the corner of my screen that says “A raid has expired” meaning I was unable to beat the raid within the allowed time. I stayed in the cave for a while but even though the raid was no longer on, I still heard raiders nearby. This happened after the battle horn sounded for the last time. If you need the specific raiding mobs I was still hearing, it sounded like a pillager and a vindicator.