Smoke is rising over Lebanon’s capital of Beirut Friday after Israel’s military struck southern suburbs – a dramatic escalation in a year-long period of conflict between Israel and Hezbollah.

Lebanese security sources say the strike targeted a top Hezbollah figure, it has been widely reported. The extent of the damage is not yet known.

Here’s the latest:

10:10 a.m. EDT

The strike comes after 48 hours of chaos in Lebanon. Earlier this week, an apparently co-ordinated operation targeting communications devices caused them to explode simultaneously.

The incident, which has been widely attributed to Israel, killed 12, injured thousands and started countless fires.

“Detonating devices in civilian areas is clearly a war crime,” Lebanon’s Health Minister Firass Abiad Friday.

This is a developing news story. Check back for more information and updates.