Police in Italy have arrested two American students.
They the pupils are connected to the killing of a policeman in central Rome.
According to a statement from Italian military police Carabinieri, the students are also being held for attempted extortion.
The students allegedly stabbed 35-year-old Mario Cerciello Rega to death on Friday.
Another police officer was injured in the incident.
Pakistan ex-PM Khan medically fit, taken back to prison, minister says
Pakistan's former Prime Minister Imran Khan is medically fit and back in jail after being examined by a team of doctors in a hospital overnight, the country's information minister said on Friday.
Strong earthquake strikes central Peru
An earthquake of magnitude 6.7 hit central Peru on Thursday, the United States Geological Survey said, although authorities reported no immediate casualties or damage.
At least 50 killed as overloaded boat capsizes in Nigeria
At least 50 people, mostly children, died after an overloaded boat capsized on Thursday in Nigeria's northwest Sokoto state, witnesses said.
Eight killed in charter plane crash near remote site in western Alaska
Eight people died after a charter plane crashed at a remote military radar site in western Alaska on Thursday, the US military's Alaskan Command said.
Australian police recover body of missing teenage hiker near Sydney
Australian police recovered the body of an 18-year-old hiker overnight from dense bushland in a remote national park near Sydney, authorities said on Friday, more than a week after she went missing.
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