The number of people from Myanmar seeking shelter in India has swelled to more than 15,000, with more likely to cross over as fighting intensifies in parts Myanmar following a coup, an Indian government official said on Tuesday, Reuters reported.

The influx into the small, northeast Indian state of Mizoram, which shares a porous, mountainous border with Myanmar, began in late February as policemen fled to avoid having to take orders from a junta trying to suppress opposition to the Feb. 1 coup.

By April, about 1,800 people from Myanmar – including several lawmakers – had crossed the border but the number has recently grown to more than 15,400, according to the vice chairman of Mizoram’s State Planning Board, H. Rammawi.