I have a unordered list with 2 levels in the following form:
\begin{itemize}
\item Level 1
\begin{list}{$\circ$}{}
\item Level 2
% Trying to add a third level here
\end{itemize}
\end{list}
I would like to add a third level in this unordered list. Is this possible and if so how do I add another unordered level?

