Bangladesh made a dent in South Africa's first-innings total on a rain-affected second day of the first Test.
Rain brought a premature end to proceedings on day two of the first Test between Bangladesh and South Africa in Chittagong, halting the hosts' steady progress.
Mustafizur Rahman had made a blistering start to his Test career on Tuesday - taking figures of 4-37, including three wickets in four balls, as Bangladesh reduced the tourists from 136-1 to 248 all out.
And, after starting day two on seven for no loss, Bangladesh slowly made a dent in that total, with Tamim Iqbal (57) and Mahmudullah (67) combining for an 89-run third-wicket stand.
The home side were 179-4 when inclement weather forced an early conclusion - the teams managing just 10 overs after tea - while a confrontation between Quinton de Kock and Tamim could land the pair in hot water.
Imrul Kayes (26) was first to be dismissed when he misjudged a Stiaan van Zyl (1-13) delivery down the leg side, allowing De Kock a straightforward stumping.
Kayes' exit signalled the arrival of Mominul Haque (6) at the crease, but it was to be a short stay in the middle for the usually reliable 23-year-old, whose off stump was taken out by a flatter Simon Harmer (1-59) ball to leave Bangladesh 55-2.
Tamim and Mahmudullah then produced a fruitful partnership, but the former appeared to become involved in a shoulder-barging incident with De Kock as the teams headed off for lunch.
South Africa captain Hashim Amla's intervention halted the dispute, although the International Cricket Council may look to review the incident - particularly after Rilee Rossouw was fined 50 per cent of his match fee for a shoulder-barge on Tamim in the second one-day international between the sides.
Tamim put the incident behind him to bring up his fifty, finding the boundary on just three occasions on his way to doing so, before missing a sweep to be bowled by Dean Elgar (1-6) in the 54th over.
Mahmudullah followed 13 overs later - trapped lbw by Vernon Philander (1-22) - leaving Mushfiqur Rahim (16 not out) and Shakib Al Hasan (1 not out) at the crease when rain stopped play.
The players did briefly emerge for an attempted restart but there was only enough time for a single Philander delivery before the heavens opened once more.