BEIRUT — Israel’s military announced on Thursday that it had detected the presence of suspects in several areas of southern Lebanon, calling it a violation of the ceasefire with Hezbollah.

Earlier on Thursday Israeli tank fire targeted three towns along Lebanon’s southeastern border with Israel, according to Lebanese security sources and state media. The strikes came a day after the ceasefire, which prohibits “offensive military operations,” had officially taken effect.

The tank fire hit Markaba, Wazzani, and Kfarchouba, all located within two kilometers of the Blue Line that marks the border between Lebanon and Israel. One security source reported that two people were wounded in Markaba.

A ceasefire between Israel and Lebanese armed group Hezbollah took effect on Wednesday under a deal brokered by the US and France, intended to allow people in both countries to start returning to homes in border areas shattered by 14 months of fighting.

But managing the returns have been complicated. Israeli troops remain stationed within Lebanese territory in towns along the border, and on Thursday morning the Israeli military urged residents of towns along the border strip not to return yet for their own safety.

The three towns hit on Thursday morning lie within that strip.

There was no immediate comment on the tank rounds from Hezbollah or Israel, who had been fighting for over a year in parallel with the Gaza war.

Lebanon’s military deployed troops and tanks across the country’s south on Thursday as a ceasefire in the Israel-Hezbollah war largely held for a second day.

A Lebanese army source said its forces were “conducting patrols and setting up checkpoints” south of the Litani River without advancing into areas where Israeli forces were still present.

In the border village of Qlaaya, residents threw rice and flowers to celebrate the arrival of Lebanese soldiers.

“We only want the Lebanese army,” chanted the residents of the Christian-majority village, as they clapped and cheered for the troops and waved the Lebanese red, white and green flag.

Since the ceasefire took effect on Wednesday, tens of thousands of Lebanese who fled their homes have headed back to their towns and villages, only to find scenes of devastation.

“Despite all the destruction and the sorrow, we are happy to be back,” said Umm Mohammed Bzeih, a widow who fled with her four children from the southern village of Zibqin two months ago.

“I feel as if our souls have returned,” she said, visibly exhausted as she swept up the shattered glass and pieces of stones that carpeted the floor.

Hezbollah lawmaker Hassan Fadlallah said his group was cooperating on the army’s deployment in the south.

There is “full cooperation” with the Lebanese state in strengthening the army’s deployment, he said, adding the group had “no visible weapons or bases” but “nobody can make residents leave their villages.”

The agreement, a rare diplomatic feat in a region racked by conflict, ended the deadliest confrontation between Israel and the Iran-backed militant group in years. But Israel is still fighting its other arch foe, the Palestinian militant group Hamas, in the Gaza Strip.

Under the ceasefire terms, Israeli forces can take up to 60 days to withdraw from southern Lebanon. Israeli Prime Minister Benjamin Netanyahu said he had instructed the military not to allow residents back to villages near the border.

Lebanon’s speaker of parliament Nabih Berri, the top interlocutor for Lebanon in negotiating the deal, had said on Wednesday that residents could return home.

AN-REUTERS /AFP