Troops free captives of Boko Haram – Silva steps up and could change the Brazilian Presidential race – Dock workers are startled at what’s found inside a shipping container – And a lot more in your CareerSpot World News Briefs:

Troops in Chad reportedly rescued around 85 Nigerian villagers abducted a week ago by Boko Haram, the extreme-fundamentalist Islamist terrorist group wreaking havoc in northeastern Nigeria.  A Nigerian official told western reporters that the Chadians stopped a convoy of buses for a routine inspection and found the gunmen and their hostages.  Last weekend, Boko Haram attacked the village of Doron Bag on the Nigerian side of Lake Chad, and spirited the hostages away on speedboats.

Kenya is closing its doors to people coming from Guinea, Liberia, and Sierra Leone – the three hardest hit countries in the West African Ebola Outbreak.  The ban is in effect from Wednesday.  The World Health Organization (WHO) says Kenya is at “high risk” from Ebola because it is a major transport hub.  Ebola has killed 1,145 in the current outbreak.

One man is dead and 35 people, including women and children, were found inside a shipping container at the Tilbury Docks in Essex, UK.  Port workers heard “screaming and banging” from inside the container, which had arrived on a ship from the Belgian port of Zeebrugge, but “originated from the Indian subcontinent”.  The people were rushed to hospital, and a sweep of the other 50 containers on the ship found no more stowaways.

Brazil’s former Environment Minister Marina Silva is expected to replace the late Eduardo Campos at the top of the Socialist Party’s presidential ticket.  Campos was killed in a plane crash on Wednesday.  Silva got 20 percent of the vote the last time she ran for president – she could siphon enough votes away from incumbent President Dilma Rousseff in October’s election to force a runoff.

Islamic State militants massacred around 700 tribesmen in Syria over the past few weeks.  The Syrian Observatory for Human Rights says its sources confirmed that beheadings were used to execute many of the al-Sheitaat tribe, which is from oil-rich Deir al-Zor province.  Meanwhile, the US says airstrikes pounded Islamic State positions near the Mosul Dam, setting up an attempt by the Kurdish Peshmerga to try and retake it.

A suicide attacker drove a truck packed with explosives to a UN patrol base in northern Mali and detonated it, killing the bomber and two UN peacekeepers.  It is not yet clear who was behind the attack, which has been condemned by UN Secretary-General Ban Ki-moon.  Islamists and Tuareg rebels caused a lot of trouble in Mali last year, until France intervened.