Split elements at paragraph breaks

Using FM 8.0p277 on Windows XP.

I have a structured document with some content copied from unstructured documents and pasted into the structure. Inside some elements, there are paragraph breaks that do not coincide with the end of an element, for example:

<ul>
<li>First item</li>
<li>Second item¶
Third item</li>
</ul>

What I need to do is find every instance and split the elements at the ¶. While the latter part is easy (typing Esc, E, s), is there a way to find elements containing a paragraph break?

Thanks in advance for any helpful advice,
Johannes