Survivors recount panic and struggle to breathe in Nigerian prison cell where 37 died

<p>Police fire teargas as protests break out in city of Minna after deaths of suspected illegal goldminers, many of whom were children</p><p>Survivors from a prison cell in Nigeria where 37 suspected illegal goldminers died while in the custody of a paramilitary group this week have recounted their panic and struggle for breath, as police on Friday fired teargas at people protesting against the deaths and imposed an overnight curfew in the city of Minna.</p><p>The victims – many of whom were chi