Bulletin 2026-09UCDP data through GED 26.1, Candidate Events 26.0.9Changes in the data

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Events and deaths in organized violence, as UCDP records them

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Sumy oblast, Ukraine: events and estimated deaths in April 2025

Monthly report of a regionDataset: UCDP GEDData through

Search engines are asked not to list this page. They list a monthly report when three things are true. The page of the region is listed. The month is one of the last 12 months. The month has 30 or more events.

UCDP recorded 39 events of organized violence in Sumy oblast, Ukraine in April 2025. The best estimate of deaths in these events is 174. The low estimate is 170 and the high estimate is 174. UCDP counts 40 of these deaths as deaths of civilians. The count for March 2025 was 28 events.

Among the 26 months with a report for Sumy oblast, Ukraine, April 2025 has the 7th highest count of events. Sumy oblast, Ukraine holds 6 percent of the events that UCDP recorded in Ukraine in April 2025.

The report of the country for this month: Ukraine, April 2025.

Not all events in UCDP Candidate will make it into the final UCDP GED and new events will be added. The UCDP Candidate is a dataset containing events that have a high probability of being included in the final annual version of UCDP GED.

An incident where armed force was used by an organized actor against another organized actor, or against civilians, resulting in at least 1 direct death at a specific location and a specific date

UCDP's words. Source: UCDP Candidate Events Dataset Codebook, version 1.5 (Introduction) and UCDP GED Codebook, version 26.1 (section 2, the definition of an event), copied on .

This page rests on UCDP GED 26.1 and UCDP Candidate Events 26.0.9, with data through . The figures from January 2026 are from Candidate Events. Candidate Events are preliminary and UCDP revises them.

The pages give counts and their sources. They give no travel, security or safety advice. A count of events is not a measure of danger.

Events

The table lists the events with 10 or more estimated deaths. The CSV file of Ukraine has each event.

Table 1. Sumy oblast, April 2025: events with 10 or more estimated deaths (2 of 39 events), in the order of their dates
DatePlaceSides, as UCDP writes themType of violenceEstimated deathsLowHigh
1 Apr 2025Sumy oblastGovernment of Russia (Soviet Union); Government of UkraineState-based717171
13 Apr 2025Sumy raion, Sumy oblastGovernment of Russia (Soviet Union); Government of UkraineState-based353535

Actors, as UCDP names them

Names as UCDP writes them.

Table 2. Sumy oblast: actors, as UCDP names them, in the events of April 2025, in name order
Name, as UCDP writes itEventsEstimated deaths in these events
Government of Russia (Soviet Union)39174
Government of Ukraine39174

An event has two sides, so one event can be in two rows. The deaths are the deaths in the events of a side. The table does not say which side caused a death.

All months

Table 3. Monthly reports of Sumy oblast, newest first: events and estimated deaths
MonthEventsEstimated deathsDataset
September 202619P31PCandidate Events
August 202624P31PCandidate Events
July 202615P33PCandidate Events
June 202625P30PCandidate Events
May 202620P29PCandidate Events
April 202621P101PCandidate Events
March 202614P17PCandidate Events
February 202618P30PCandidate Events
January 202615P24PCandidate Events
December 20254581GED
November 20253766GED
October 202557103GED
September 202565120GED
August 202552159GED
July 202550184GED
June 202528243GED
May 202541214GED
April 202539174GED
March 20252849GED
February 20251118GED
January 2025825GED
December 20242242GED
November 20241036GED
October 2024813GED
September 20242451GED
August 20242127GED

P Preliminary. The figure is from UCDP Candidate Events, and UCDP revises these events. Search engines list a report of a month in the last 12 months that has 30 or more events. The other reports stay online and ask search engines not to list them.

Sumy oblast: all figures

Cite this page

ConflictStats. Sumy oblast, Ukraine: events and estimated deaths in April 2025. https://conflictstats.com/country/ukraine/sumy-oblast/month/2025-04/. Source: Uppsala Conflict Data Program, UCDP GED 26.1 and UCDP Candidate Events 26.0.9. Data through .

The address of this page does not change. UCDP asks for a citation of its publications: Data sources and licences has it.