A 4.9 magnitude earthquake hit Albania on Thursday, the third quake in the last three days.

The tremor’s epicenter was under the Adriatic Sea at a depth of 20 kilometers (12.4 miles), and 48 km (29.8 miles) off the capital Tirana, said the Euro-Mediterranean Seismological Center.

Meanwhile, NATO on its social media praised Albania’s Independence Day and expressed solidarity following the disaster.

“Today is Albania’s Independence Day. Our hearts and minds lay heavy in solidarity with our NATO ally going through difficult times,” said the post.

At least 40 people lost their lives in Tuesday’s 6.4 tremor.

Read more: Third earthquake in last three days hits Albania