Bangladesh tightened security Saturday for an election expected to see Prime Minister Sheikh Hasina win a record fourth term but dominated by opposition claims that they have been shackled by a government clampdown. Authorities have deployed around 600,000 police, army and other security forces ahead of Sunday's vote, a senior official said, following a deadly campaign of clashes and the arrests of opposition activists.

The forces - which also include the elite Rapid Action Battalion (RAB), navy, border and coast guards and auxiliary police units - will guard some 40,000 election booths across the poor South Asian nation.

"We have ensured the highest level of security in Bangladesh as per the capacity of the country," Rafiqul Islam of the election commission told AFP.

Copyright Agence France-Presse, 2018