Heap object created on the stack isn't cleaned up properly

[lucky6969b]

m_vRenderObjects.push_back(new Objects(mOperatorMesh));

/// this is never called
~Objects(void) { 
		OutputDebugStringA("Cleanup Objects\n");
		if (StateMachine != NULL)
		{
			delete StateMachine; 
			StateMachine = NULL;
		}

		if (m_pAnimCtrl != NULL)
		{
			m_pAnimCtrl->Release(); 
			m_pAnimCtrl = NULL;
		}
	
		dtFreeNavMeshQuery(m_navQuery); 
		m_navQuery = NULL;
	}

This leads to ugly memory leaks.
Help please.
Thanks
Jack