Around 90% of those who cross the EU's external borders illegally do so with the help of migrant smugglers. Who are these smugglers, how do they operate and why do migrants turn to them despite horrific accidents?

Sub-Saharan African migrants are targeted by Tunisians amidst a flare-up of racist tensions exacerbated by the killing of a local man in the port city of Sfax. Also, the UN condemns not just a humanitarian crisis but a crisis of humanity amid reports of widespread sexual assault in Sudan's war. Residents are also struggling with food and medicine shortages.

There are close to 700,000 foreigners living in Libya, many of them migrants who'd like to make their way to Europe. Some of those who were turned back want to try again.

Tunisia's crackdown against Sub-Saharans has reached a new brutal stage. Hundreds of migrants were saved at the last minute near Libya, while others remain stuck in the desert near the border with Algeria.

INM agents, the Navy, and the National Guard found the foreigners, including five Guatemalans and five Indians as well as 19 unaccompanied children and teenagers, huddled together in the back of a tractor-trailer that was improperly parked in a road close to the city of Fortin de las Flores, in the southern state of Veracruz.

The Justice Department said the controversial barriers were built without relevant authorization. Texas Governor Greg Abbott defended his actions against irregular migration in anticipation of the lawsuit.

The Tunisian coast guard recovered 901 bodies of drowned migrants off its coast from the start of the year. The country has become a major gateway for irregular migrants and asylum-seekers headed to Europe.

A bus carrying foreign migrants careened off the road and fell into a ravine in northern Mexico, leaving 18 people dead. The driver has been detained.

Greece is seeing a spike in arrivals by sea of people fleeing conflict and economic hardship in the Middle East and Africa.

A baby was one of two victims after a boat carrying migrants and refugees capsized off Tunisia. A similar tragedy, off the northern French coast, left six Afghan nationals dead.

The wooden boat left Senegal more than 40 days ago with more than 100 people on board. It was traveling in the direction of Spain's Canary Islands when it capsized in the Atlantic Ocean off Cape Verde.

Saudi Arabian border guards have killed hundreds of Ethiopian migrants, including women and children, who attempted to enter the kingdom along its mountainous border with Yemen, Human Rights Watch (HRW) said on Monday.