There is anger on the streets of Mexico over the case of more than 40 students thought to have been murdered by drug gangs.<br /><br />Demonstrators have turned out in their thousands calling for justice, saying not enough is being done to investigate the killings.<br /><br />One protester, Luis Manuel Sanchez Navarro told reporters:<br /><br />“On all levels, justice has hit rock bottom. We are dealing with a dreadful government, and I hope the result of this is that the Mexican people express their anger and something serious happens.”<br /><br />The missing students are thought to have been abducted by corrupt police and then killed and incinerated by gangsters.<br /><br />Over the weekend demonstrators set fire to the door of the national palace in Mexico City, an incident condemned by the country’s president. <br /><br />But Peña Nieto has been criticised for travelling overseas as the crisis engulfs his government back home.<br /><br />Officials have stopped short of officially confirming the missing students’ deaths saying there is still a lack of definite evidence.