diff --git a/apps/opencs/view/render/cell.cpp b/apps/opencs/view/render/cell.cpp
index d414498db..f21d6b40b 100644
--- a/apps/opencs/view/render/cell.cpp
+++ b/apps/opencs/view/render/cell.cpp
@@ -96,6 +96,19 @@ CSVRender::Cell::Cell (CSMWorld::Data& data, Ogre::SceneManager *sceneManager,
 
 CSVRender::Cell::~Cell()
 {
+    // TODO: maybe store the cell coordinates rather than searching for them in the destructor?
+    if(mTerrain.get())
+    {
+        const CSMWorld::IdCollection<CSMWorld::Land>& land = mData.getLand();
+        int landIndex = land.searchId(mId);
+        if (landIndex != -1)
+        {
+            const ESM::Land* esmLand = land.getRecord(mId).get().mLand.get();
+            if(esmLand)
+                CSVWorld::PhysicsSystem::instance()->removeHeightField(esmLand->mX, esmLand->mY);
+        }
+    }
+
     for (std::map<std::string, Object *>::iterator iter (mObjects.begin());
         iter!=mObjects.end(); ++iter)
         delete iter->second;
diff --git a/apps/opencs/view/render/object.cpp b/apps/opencs/view/render/object.cpp
index 01164366a..474c79b35 100644
--- a/apps/opencs/view/render/object.cpp
+++ b/apps/opencs/view/render/object.cpp
@@ -33,11 +33,12 @@ void CSVRender::Object::clearSceneNode (Ogre::SceneNode *node)
 
 void CSVRender::Object::clear()
 {
+    if(!mObject.isNull())
+        CSVWorld::PhysicsSystem::instance()->removeObject(mBase->getName());
+
     mObject.setNull();
 
     clearSceneNode (mBase);
-
-    // FIXME: also clear bullet objects
 }
 
 void CSVRender::Object::update()
diff --git a/apps/opencs/view/world/physicssystem.cpp b/apps/opencs/view/world/physicssystem.cpp
index f5f82c033..fa43a57a4 100644
--- a/apps/opencs/view/world/physicssystem.cpp
+++ b/apps/opencs/view/world/physicssystem.cpp
@@ -53,6 +53,15 @@ namespace CSVWorld
 
     PhysicsSystem::~PhysicsSystem()
     {
+        std::map<std::string, std::vector<std::string> >::iterator iter = mSelectedEntities.begin();
+        for(;iter != mSelectedEntities.end(); ++iter)
+        {
+            removeHitPoint(mSceneMgr, iter->first);
+            Ogre::SceneNode *scene = mSceneMgr->getSceneNode(iter->first);
+            scene->removeAndDestroyAllChildren();
+            mSceneMgr->destroySceneNode(iter->first);
+        }
+
         delete mEngine;
     }
 
@@ -152,6 +161,11 @@ namespace CSVWorld
         mEngine->addHeightField(heights, x, y, yoffset, triSize, sqrtVerts);
     }
 
+    void PhysicsSystem::removeHeightField(int x, int y)
+    {
+        mEngine->removeHeightField(x, y);
+    }
+
     void PhysicsSystem::toggleDebugRendering()
     {
         CSMSettings::UserSettings &userSettings = CSMSettings::UserSettings::instance();
diff --git a/apps/opencs/view/world/physicssystem.hpp b/apps/opencs/view/world/physicssystem.hpp
index 2ae17b5e3..c2115bc0f 100644
--- a/apps/opencs/view/world/physicssystem.hpp
+++ b/apps/opencs/view/world/physicssystem.hpp
@@ -53,11 +53,13 @@ namespace CSVWorld
             void addHeightField(float* heights, int x, int y, float yoffset,
                                 float triSize, float sqrtVerts);
 
+            void removeHeightField(int x, int y);
+
             void toggleDebugRendering();
 
             std::pair<bool, std::string> castRay(float mouseX, float mouseY,
-                                                 Ogre::Vector3* normal, std::string* hit,
-                                                 Ogre::Camera *camera, bool ignoreHeightMap);
+                            Ogre::Vector3* normal, std::string* hit,
+                            Ogre::Camera *camera, bool ignoreHeightMap);
     };
 }