Leyton Orient have vowed to act after homophobic chanting was heard from sections of Luton fans during their Sky Bet League Two match on Saturday.
Fans chanted "Do you take it up the a***?" to a group of men in a block of flats which overlooked the Matchroom Stadium.
Orient released a statement following the incident, which read: "We were made aware of homophobic chanting from sections of the Luton Town fans and will be dealing with it retrospectively. All information will be passed on to Luton Town.
"We do not condone racial or homophobic chanting at Leyton Orient FC and any such offender would be dealt with accordingly."
Luton said they had been unaware of such chants, but said the club would look at what had happened.
A Luton spokesman said: "We will take a review of the situation on Monday, but as a club we do not condone any kind of discriminatory chanting or comments from our supporters, and any serious abuse will be dealt with."
Orient later added to their statement by saying: "We are currently reviewing CCTV footage of the incident and will be sharing all relevant information with Luton Town in order to identify any offenders.
"Leyton Orient do not condone homophobic or discriminatory chanting of any sort and offenders will be dealt with in accordance with regulations."
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