Two Lebanese soldiers were killed in fighting, as the army continues its assault against Islamic militants holed up inside a Palestinian refugee camp.

Army officials say the soldiers were killed Wednesday inside the Nahr el-Bared refugee camp in northern Lebanon.

More than 130 people - including 63 soldiers and at least 20 civilians - have been killed since fighting between Lebanese troops and the militant group Fatah al-Islam broke out at the camp more than three weeks ago.

Tens of thousands of Palestinian refugees managed to flee the area, but thousands more remain inside.

In related news, the U.S.-based rights group Human Rights Watch has accused the Lebanese army of physically abusing and illegally detaining civilians fleeing the camp.

Lebanese officials would not comment on the allegations.

Some information for this report was provided by AFP, AP and Reuters.