diff --git a/src/fits/GFits.cpp b/src/fits/GFits.cpp
index 04ee21f..7b68ecc 100644
--- a/src/fits/GFits.cpp
+++ b/src/fits/GFits.cpp
@@ -857,6 +857,9 @@ void GFits::remove(const int& extno)
         throw GException::invalid_argument(G_REMOVE1, msg);
     }
 
+    // Delete HDU
+    if (m_hdu[extno] != NULL) delete m_hdu[extno];
+
     // Erase HDU from FITS file
     m_hdu.erase(m_hdu.begin() + extno);
 
diff --git a/src/obs/GObservations.cpp b/src/obs/GObservations.cpp
index 2376df6..558dbce 100644
--- a/src/obs/GObservations.cpp
+++ b/src/obs/GObservations.cpp
@@ -400,6 +400,9 @@ void GObservations::remove(const int& index)
     }
     #endif
 
+    // Delete observation
+    delete m_obs[index];
+
     // Erase observation component from container
     m_obs.erase(m_obs.begin() + index);
 
diff --git a/src/sky/GSkyRegions.cpp b/src/sky/GSkyRegions.cpp
index b9e1b54..08d2e89 100644
--- a/src/sky/GSkyRegions.cpp
+++ b/src/sky/GSkyRegions.cpp
@@ -542,6 +542,9 @@ void GSkyRegions::remove(const int& index)
     }
     #endif
 
+    // Delete region
+    delete m_regions[index];
+
     // Erase region component from container
     m_regions.erase(m_regions.begin() + index);
     
@@ -570,6 +573,9 @@ void GSkyRegions::remove(const std::string& name)
         throw GException::invalid_argument(G_REMOVE2, name);
     }
 
+    // Delete region
+    delete m_regions[index];
+
     // Erase region component from container
     m_regions.erase(m_regions.begin() + index);
     
diff --git a/src/xml/GXmlNode.cpp b/src/xml/GXmlNode.cpp
index e86ee9d..c905287 100644
--- a/src/xml/GXmlNode.cpp
+++ b/src/xml/GXmlNode.cpp
@@ -354,6 +354,9 @@ void GXmlNode::remove(const int& index)
     }
     #endif
 
+    // Delete node
+    delete m_nodes[index];
+    
     // Erase child node from container
     m_nodes.erase(m_nodes.begin() + index);