A 34-year old man was arrested in connection to the crime after allegedly attempting to assault police officers at Kings Cross this morning, 9News reports.
NSW Police Commissioner Andrew Scipione has described the incident as "outrageous", but says the attack is unlikely to have any connection to the December 2014 siege.
The man has been identified as former Sydney Kings basketballer Luke Martin.
Fairfax reports Martin was arrested this morning after a police pursuit which ended in a scuffle with officers resulting in one officer suffering a broken jaw.
NSW police confirmed that a 34-year old man was charged with drive manner dangerous, police pursuit (Skye's Law), assault police occasioning actual bodily harm and resisting arrest.
Earlier: Sydney residents awoke this morning to find someone had thrown rocks through the windows of the Lindt Cafe, the scene of last year's siege in which three people died.
Witnesses saw a man approach the windows at around 12.30 overnight before throwing several large rocks at the Martin Place cafe.
NSW Police are looking for a man aged in his 40s, with a tanned complexion and facial hair. Anyone with information is asked to call Crimestoppers on 1800 333 000.
Police will also access CCTV cameras in the area.
The cafe re-opened in March this year after the December 2014 siege in which gunman Man Haron Monis and two hostages, Tori Johnson and Katrina Dawson, were killed.
Monis entered the cafe early on December 15 armed with a shotgun, waving an Islamic flag and demanding to speak to Prime Minister Tony Abbott. The city of Sydney was placed in lockdown as hostages were forced to spread the gunman's message on social media while negotiations began.
Over the next 16 hours, several of the hostages were able to escape before police stormed the cafe early on the morning of December 16. It's believed the police raid was sparked when Monis shot Johnson at close range. In the ensuing firefight Monis was killed by police and Dawson is thought to have been hit by a ricochet.