The fractures in Manitoba's New Democratic Party are ongoing and must be repaired if the NDP hopes to rebuild, interim leader Flor Marcelino told party faithful Friday night.

Marcelino recently travelled the province to consult members on the future of the party, which suffered a devastating election loss in April and an internal revolt against former premier Greg Selinger in 2014. She said the message was simple and direct.

"Our members told us that our party needs to go through a process of reconciliation and conflict resolution in order to move forward," Marcelino said in a speech at the party's annual fall fundraising event.

"It was evident to me that healing will take some time."

The NDP was, until recently, a powerhouse in Manitoba. The party held office for 17 years starting in 1999, and won bigger majorities each time it was re-elected. But public support plummeted after the government raised the provincial sales tax in 2013, and five senior cabinet ministers openly questioned Selinger's leadership the following year.

The revolt led to a leadership convention vote that Selinger barely survived. He continued to lead the party into the April election, which saw the NDP lose more than half its legislature seats and moved to the opposition side of the chamber.

The fallout has been evident. Fundraising has dropped sharply and only 130 people attended Marcelino's fundraising speech Friday. Fall fundraisers in recent years have normally drawn 600 or more.

Marcelino was applauded for her speech, in which she called for an end to "recriminations" among party factions.

"I would like to add my two cents on how we can go forward. Restoring unity in the party has to be a priority. We're not going anywhere together without restoring unity. Abraham Lincoln reminds us 'A house divided against itself cannot stand."'

Some of the key players in the caucus revolt remain very active within the party.

Selinger, who stepped down as leader on election night, remains in caucus. Marcelino sided with Selinger in the leadership war before being named his interim replacement.

Steve Ashton, who finished third in the three-way leadership race, was not re-elected in April, but remains active within the party and as an informal adviser to some members of caucus.

Theresa Oswald, a former health minister who led the challenge against Selinger and finished second in the leadership race, did not run for re-election. Some of her supporters continue to hold key positions in labour groups affiliated with the NDP. One of her colleagues in the revolt, Andrew Swan, continues to sit in caucus.

The party's provincial council decided in June that a replacement for Selinger will be chosen, at the latest, by the end of October 2017.