Removing new line after figure [duplicate]

Question

This question already has an answer here:

• Should I use center or centering for figures and tables? 2 answers

We've been given a template to work with. I am adding figures with the following code:

\begin{figure}[H]
    \begin{center}
      \includegraphics[scale=0.7]{Figures/System/reinf-learning.jpg}
      \caption{Components of a reinforcement learning agent}
      \label{fig:reinf-learning}
    \end{center}
\end{figure}

However, there is always a new line between after the figure. I'm trying to find something that will allow me to remove this new line. How can this be done? Thanks.

I've tried adding \setlength{\belowcaptionskip}{-10pt} but to no avail.