Police want to speak to a man who appeared to use a mobile phone to film a mass brawl involving 20 men in Brick Lane.
Detectives released the CCTV image after the incident in east London at around 10.40pm on Sunday, October 12.
Scotland Yard said officers were called to a "large scale fight" between 20 men in the street.
Six men were arrested and 14 others are believed to have fled the scene before police arrived.
<blockquote class="twitter-tweet" lang="en">Following <a rel="nofollow" target="_blank" href="https://twitter.com/MPSWeaversSgt" class="body-link" data-vars-item-name="BL-156596-https://twitter.com/MPSWeaversSgt" data-vars-event-id="c23">@MPSWeaversSgt</a> Would like to trace anyone who filmed or witnessed the fight on <a rel="nofollow" target="_blank" href="https://twitter.com/hashtag/BrickLane?src=hash" class="body-link" data-vars-item-name="BL-156596-https://twitter.com/hashtag/BrickLane?src=hash" data-vars-event-id="c23">#BrickLane</a>. Please RT <a rel="nofollow" target="_blank" href="https://www.awin1.com/awclick.php?mid=9&id=222025&p=http://t.co/y8ljDsqXyI" class="body-link" data-vars-item-name="BL-156596-http://t.co/y8ljDsqXyI" data-vars-event-id="c23">pic.twitter.com/y8ljDsqXyI</a>— Tower Hamlets MPS (@MPSTowerHam) <a rel="nofollow" target="_blank" href="https://twitter.com/MPSTowerHam/status/521630485277986817" class="body-link" data-vars-item-name="BL-156596-https://twitter.com/MPSTowerHam/status/521630485277986817" data-vars-event-id="c23">October 13, 2014</a>
Four of the six arrested were released without further action, according to the Met.
A spokesman said the two others were each charged with one count of violent disorder and are due to appear at Thames Magistrates' Court on Thursday.
<blockquote class="twitter-tweet" lang="en">Would like to trace anyone,inc this person,who filmed the fight on Brick Lane last night, 22.40 hrs.Please RT. <a rel="nofollow" target="_blank" href="https://www.awin1.com/awclick.php?mid=9&id=222025&p=http://t.co/DL3cM8SNx7" class="body-link" data-vars-item-name="BL-156596-http://t.co/DL3cM8SNx7" data-vars-event-id="c23">pic.twitter.com/DL3cM8SNx7</a>— Sgt Colin Reed (@MPSWeaversSgt) <a rel="nofollow" target="_blank" href="https://twitter.com/MPSWeaversSgt/status/521627278435155968" class="body-link" data-vars-item-name="BL-156596-https://twitter.com/MPSWeaversSgt/status/521627278435155968" data-vars-event-id="c23">October 13, 2014</a>
The brawl broke out by Brick Lane's Jamme Masjid mosque, at the junction with Fournier Street, yards from the area's famous strip of curry houses.
A Met Police spokesman said: "Anyone who witnessed the incident or has information is asked to call Detective Constable Hurley, from Tower Hamlets CID office on 101. Alternatively you can contact Crimestoppers anonymously on 0800 555 111."
