diff --git a/src/modes/linear_world.cpp b/src/modes/linear_world.cpp
index 4d1bc9caa..d0a680833 100644
--- a/src/modes/linear_world.cpp
+++ b/src/modes/linear_world.cpp
@@ -33,6 +33,7 @@
 //-----------------------------------------------------------------------------
 LinearWorld::LinearWorld() : World()
 {
+    m_kart_display_info = NULL;
 }   // LinearWorld
 
 // ----------------------------------------------------------------------------
@@ -82,7 +83,10 @@ void LinearWorld::init()
 //-----------------------------------------------------------------------------
 LinearWorld::~LinearWorld()
 {
-    delete[] m_kart_display_info;
+    // In case that a track is not found, m_kart_display info was never
+    // initialised.
+    if(m_kart_display_info)
+        delete[] m_kart_display_info;
 }   // ~LinearWorld
 
 //-----------------------------------------------------------------------------
diff --git a/src/modes/world.cpp b/src/modes/world.cpp
index b758eaada..4f859b036 100644
--- a/src/modes/world.cpp
+++ b/src/modes/world.cpp
@@ -57,6 +57,7 @@
 //-----------------------------------------------------------------------------
 World::World() : TimedRace()
 {
+    m_physics = NULL;
 }
 void World::init()
 {
@@ -172,7 +173,9 @@ World::~World()
 {
     item_manager->cleanup();
     delete race_state;
-    m_track->cleanup();
+    // In case that a race is aborted (e.g. track not found) m_track is 0.
+    if(m_track)
+        m_track->cleanup();
     // Clear all callbacks
     callback_manager->clear(CB_TRACK);
 
@@ -181,7 +184,9 @@ World::~World()
 
     m_kart.clear();
     projectile_manager->cleanup();
-    delete m_physics;
+    // In case that the track is not found, m_physics is still undefined.
+    if(m_physics)
+        delete m_physics;
 
     sound_manager -> stopMusic();