Yesterday, the fill-in debris was drilled keeping ROP of 2 m/hr and circulation of 30 L/s. At midnight the string got stuck at 2001 m depth for 45 minutes. At 4:30 am, this morning, 2015.8 m depth was reached. Since then the hole has been cleaned with water and polymer pills. Fill-in debris seem to accumlate very easily in the hole. This morning at c. 8 am, a total loss of circulation occured. The plan is to cement a plug in the hole. At 10 am POOH started.