diff --git a/src/PhpSpreadsheet/Worksheet/Worksheet.php b/src/PhpSpreadsheet/Worksheet/Worksheet.php
index e9e0d78c6..3703f0003 100644
--- a/src/PhpSpreadsheet/Worksheet/Worksheet.php
+++ b/src/PhpSpreadsheet/Worksheet/Worksheet.php
@@ -2392,6 +2392,20 @@ class Worksheet
         if ($row < 1) {
             throw new Exception('Rows to be deleted should at least start from row 1.');
         }
+        $startRow = $row;
+        $endRow = $startRow + $numberOfRows - 1;
+        $removeKeys = [];
+        foreach ($this->mergeCells as $key => $value) {
+            if (preg_match('/^[a-z]{1,3}(\d+)/i', $key, $matches) === 1) {
+                $startMergeInt = (int) $matches[1];
+                if ($startMergeInt >= $startRow && $startMergeInt <= $endRow) {
+                    $removeKeys[] = $key;
+                }
+            }
+        }
+        foreach ($removeKeys as $key) {
+            unset($this->mergeCells[$key]);
+        }
 
         $holdRowDimensions = $this->removeRowDimensions($row, $numberOfRows);
         $highestRow = $this->getHighestDataRow();
@@ -2448,6 +2462,20 @@ class Worksheet
         if (is_numeric($column)) {
             throw new Exception('Column references should not be numeric.');
         }
+        $startColumnInt = Coordinate::columnIndexFromString($column);
+        $endColumnInt = $startColumnInt + $numberOfColumns - 1;
+        $removeKeys = [];
+        foreach ($this->mergeCells as $key => $value) {
+            if (preg_match('/^[a-z]{1,3}/i', $key, $matches) === 1) {
+                $startMergeInt = Coordinate::columnIndexFromString($matches[0]);
+                if ($startMergeInt >= $startColumnInt && $startMergeInt <= $endColumnInt) {
+                    $removeKeys[] = $key;
+                }
+            }
+        }
+        foreach ($removeKeys as $key) {
+            unset($this->mergeCells[$key]);
+        }
 
         $highestColumn = $this->getHighestDataColumn();
         $highestColumnIndex = Coordinate::columnIndexFromString($highestColumn);
diff --git a/tests/PhpSpreadsheetTests/Worksheet/MergeCellsDeletedTest.php b/tests/PhpSpreadsheetTests/Worksheet/MergeCellsDeletedTest.php
new file mode 100644
index 000000000..731c03671
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/Worksheet/MergeCellsDeletedTest.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Worksheet;
+
+use PhpOffice\PhpSpreadsheet\Reader\Xlsx as XlsxReader;
+use PHPUnit\Framework\TestCase;
+
+class MergeCellsDeletedTest extends TestCase
+{
+    public function testDeletedColumns(): void
+    {
+        $infile = 'tests/data/Reader/XLSX/issue.282.xlsx';
+        $reader = new XlsxReader();
+        $spreadsheet = $reader->load($infile);
+        $sheet = $spreadsheet->getSheetByName('Sheet1');
+
+        $mergeCells = $sheet->getMergeCells();
+        self::assertSame(['B1:F1', 'G1:I1'], array_values($mergeCells));
+
+        // Want to delete column B,C,D,E,F
+        $sheet->removeColumnByIndex(2, 5);
+        $mergeCells2 = $sheet->getMergeCells();
+        self::assertSame(['B1:D1'], array_values($mergeCells2));
+        $spreadsheet->disconnectWorksheets();
+    }
+
+    public function testDeletedRows(): void
+    {
+        $infile = 'tests/data/Reader/XLSX/issue.282.xlsx';
+        $reader = new XlsxReader();
+        $spreadsheet = $reader->load($infile);
+        $sheet = $spreadsheet->getSheetByName('Sheet2');
+
+        $mergeCells = $sheet->getMergeCells();
+        self::assertSame(['A2:A6', 'A7:A9'], array_values($mergeCells));
+
+        // Want to delete rows 2 to 4
+        $sheet->removeRow(2, 3);
+        $mergeCells2 = $sheet->getMergeCells();
+        self::assertSame(['A4:A6'], array_values($mergeCells2));
+        $spreadsheet->disconnectWorksheets();
+    }
+}
diff --git a/tests/data/Reader/XLSX/issue.282.xlsx b/tests/data/Reader/XLSX/issue.282.xlsx
new file mode 100644
index 000000000..95751ba13
Binary files /dev/null and b/tests/data/Reader/XLSX/issue.282.xlsx differ