Lenglet, a former France under-21 worldwide, becomes Barca's second signing of the summer following confirmation last week that Gremio midfielder Arthur Melo will also join the club this month.
The Spanish giants were reportedly hoping to pay the fee in instalments, but Sevilla have apparently made it clear they would not enter into talks with Barca.
USA threatens to impose fresh tariffs on China
On Wednesday, the Trump administration said ZTE took another step toward ending a us ban after ZTE signed an escrow agreement. The International Monetary Fund has warned that a full-blown trade war could undermine the broadest global upswing in years.
It has been claimed that Barca have activated the Frenchman's €35 million (R553 million) release clause after Sevilla refused to negotiate with the Blaugrana.
Lenglet, 23, has signed a five-year deal at the Nou Camp after the Spanish champions met his buy-out clause. The deal with Barcelona also includes a €300m release clause.
The French global joined Sevilla from Nancy in January 2017 and scored four goals in 52 games last season.
Syrian army hoists national flag in Dara'a city
A Russian military delegation earlier held negotiations with the militants in Dera'a to persuade them to surrender their weapons. Latest estimates say some 2,000 militants are still holed up in Dara'a city, along with their families.
Supplements Do Not Prevent Cardiovascular Disease
The new findings come on the heels of prior studies which showed that supplements have few, if any, health benefits. Millions of Americans take multivitamins as a quick fix for the nutrients missing from their diets.
Twitter CEO loses 200,000 followers in fake account purge
He lost just 326,118 followers on Thursday, the day before most accounts saw a drop, and on Friday he regained 5,339 followers. The social-media company warned on Wednesday that its crackdown on fake accounts means users will have fewer followers.
Trump reveals Kim Jong-un's letter in tweet
Thursday to discuss returning the remains of American soldiers killed during the 1950-53 Korean War, according to a Yonhap report. " Great progress being made ", Trump tweeted on Thursday along with the letter, calling it a "very nice note from Chairman Kim".