Drilling continued all of yesterday until about 22 in the evening, when the torque suddenly spiked at 4308 m depth. After reaming the well between 4281 and 4308m drilling continued again at 02:30 this morning until 04:30 when the torque spiked again at 4310 m depth. The string was pulled but problems were encountered between 4280 and 4286 m depth. At that point rotation became difficult to maintain. About 40 l/s were pumped on the string and 12 l/s on kill-line.The drill bit depth at 11:30 is at 4282 m.