June 28 (Reuters) - Climate activists are planning a

march targeting Citigroup's ( C/PN ) headquarters in New York on

Friday, part of what they call a "Summer of Heat" campaign.

More than 1,000 climate activists are expected to take part

in the march that will terminate with a "mass civil disobedience

action" at Citi's offices, according to a statement from the

Summer of Heat on Wall Street campaign, which is organizing the

protests.

Citi employees have been alerted to anticipate "significant

protest" activity around its headquarters building on Friday,

according to a source at the bank who shared the security

notification with Reuters.

The Summer of Heat campaign is targeting Wall Street players

in a campaign against fossil fuels. Reuters could not

immediately independently confirm the campaigns' claims.

Citi declined to comment.

On June 10, multiple demonstrators were taken into custody

outside Citi's headquarters, according to the New York Police

Department. The NYPD said that 23 individuals were later

released with criminal court summonses. The action was earlier

reported by the New York Post.

"The department remains ready and available to respond to

protests and will ensure everyone is able to peacefully exercise

their first amendment rights," an NYPD spokesperson told

Reuters.