Estonia is "seriously" discussing sending troops into western Ukraine to assume non-direct combat roles in order to free up Ukrainian forces for the front lines, according to a top Estonian national security official.

Madis Roll, the national security adviser to Estonia's president, told the Breaking Defense website his nation is currently analyzing the possible move. Estonia is a NATO nation and would prefer to make any move as part of a full NATO mission but would not discount Estonia making the move in a smaller coalition, according to Breaking Defense.

"Discussions are ongoing," Roll said. "We should be looking at all the possibilities. We shouldn't have our minds restricted as to what we can do."