Self-inflicted suffering through rejection of truth

فَأَصَابَهُمْ سَيِّـَٔاتُ مَا عَمِلُوا۟ وَحَاقَ بِهِم مَّا كَانُوا۟ بِهِۦ يَسْتَهْزِءُونَ

So they were struck by the evil consequences of what they did and were enveloped by what they used to ridicule.